the venice film festival is underway and one of the movies making its premiere is roma, from the oscar—winning director alfonso cuaron. it's being distributed by netflix, which has a strong presence at this year's event — something that doesn't go down well with everyone in the film world. our arts editor will gompertz explains. alfonso cuaron‘s latest film is a black—and—white cinematic memoir based on his childhood growing up in mexico city in a middle—class family that enjoys the support and love of domestic worker cleo. in reality this film is about cleo. but, more important, as a woman from a different social class and a different social context, even if she is part of my family than my own family. and racially different...? and more important, race, and through that the prism to talk about different thematic elements. one of them being this perverse relationship, the relationship that exists between class and race. roma is in competition

for the main festival prize, which has proved to be a talking point here because it's being distributed by the streaming service netflix, which, controversially, tends not to give cinema is an exclusive period to show a film before it appears online. why did you decide to go with netflix for distribution? the complexities of today's foreign film market worldwide, and foreign film, i'm talking none in english and none with stars, is very specific. you don't have the options that you have when you're doing a hollywood film. but do you worry, as somebody who loves cinema, that working with streaming companies can end up with people not going to cinemas and watching it at home instead? people who want to see this film on the big screen, they will have the opportunity to see it on the big screen and, by the same token, i know that there's a whole new generation that they prefer... that rarely go to the cinema. this is the man who decided to allow the streaming services to take part

in the festival against the wishes of many cinema owners, who, he says, need to accept and adapt to the rapidly changing landscape of the movie business. no new media killed the old ones. this is an opportunity for them to try to change the model and the offering to the audience. you cannot stay there waiting for the audience coming and buying a ticket. it will not happen any more. you have to convince them to come to a theatre, to find a way to let them understand that coming to a theatre, it's a more rewarding and more beautiful experience. whether people see roma online, on the big screen, or not at all, the chances are if the critics‘ positive reaction to it here are anything to go by, is that we will be hearing a lot more about the film is the award season approaches. will gompertz, bbc news, venice. newswatch is coming up in around 10 minutes‘ time, but first it's click. this is the business card

of our first guest on the programme this week, google‘s self self—proclaimed security princess. parisa tabriz is one of the biggest names in cyber security. the buck stops with her if, for example, chrome, google‘s browser, is hacked. and if you've ever seen these while you're browsing, these little padlocks help us to know if the link between your computer or phone and a website is secure. parisa is behind google‘s push to get more websites to use the encrypted https protocol. now, not all hackers are bad guys, of course. parisa employs about 200 of them in a specialist unit called project

zero. they hack all sorts of software before the bad guys do before any vulnerabilities can be spotted and fixed. they're like a police force but they all wear hoodies, because obviously that's all that hackers ever wear, apparently. anyway, dan simmons went to chat about all these things with parisa at the world's biggest cyber security expo, black hat. the security princess is informal, controversial and, unusually for the industry, she's a woman. so honours even with the paper—scissors thing, we agreed to start there. so who gave you the title of security princess? self—appointed. you came up with it. i came up with it myself. when i started at google i had a job title — information security engineer in the information security team, which i thought was a mouthful and also not very meaningful. so i was actually going to go to a conference and they told me

to me you need to make business cards. and so i was, like, so, if i was going to have a meaningless job title, i thought i would make it cute and whimsical. on a serious note, you're one of very few women at your level in the security industry, even in the it industry, but specifically within the security industry. what's it like? when ijoined chrome to lead the security team i was the only woman, and now we have a whole team which is actually majority women, and they're the one who are actually responsible for all the work that we've seen to push https on the web. what are the things you pick up on that you think, actually, i reckon that probably does put quite a few women off? you hear a lot of stories. you know, very subtle things, like you go to an event and there's women that are, kind of, dressed in scantily—clad outfits and that's, like, the major woman presence there and that doesn't make you feel included and respected as a professional.

project zero gets hackers to find bugs in any software on the web. they give vendors 90 days to fix it or they go public. doing that has actually incentivised more change in industry in terms of being able to fix security bugs faster. before you started, 25% of those problems got sorted in 90 days i understand? yes. and now it's what? now the vast majority, i think 98% of issues are fixed within the 90—day disclosure policy. you have to be a genius to be in your position? no, you don't, i am not a genius. you have to be a genius. i'm not, i'm really not a genius. if there's one thing i want you to know, i am not a genius. i work hard, i embrace learning, and as you get older your kind of afraid to fail but that's how you learn. can we do one more because i know

i lost the first one, so... sure, sure. 0k. three again? 0k, got it. oh, yes! until next time, parisa, thank you very much. thank you. now, in my experience, one of the big themes of almost every efa tech show is the smart home, which usually means the very latest version of a fridge with a camera in it unless you can't be bothered to open the door, but lara lewington has managed to hunt down some actually useful smart homery. there's been no shortage of smart home devices over the past few years, but which ones would you actually want? this small plastic bin is the prototype of something called the bindicator. the idea is it will connect to your local council's website and will then change colour depending on what bin needs to be connected. so it does solve a problem but the question is, do you really want it

sitting in your house? one thing that isn't a matter of opinion, though, is that we all want to make sure our homes are safe. yes, it has the sensors, it even has the photo sensor which will take five photographs every time a movement triggers it, that's of course only when the alarm is actually set, but this is the real difference — a fog dispenser which will fill the room with fog, so if somebody is about to steal something, well, they might not be able to even find it. once the alarm is set, the control centre will be able to access sound and pictures. the activation ofjust one sensor is then enough to alert a human to trigger this fog if needed. woah! well, it's quite something. i'm glad i didn't get thejob of being the fake burglar. oh, it does catch in your throat a bit and a bit stingy on your eyes but i've been assured

it's perfectly safe, it's passed to some sort of eu regulations, and apparently it leaves no residue inside anyone‘s home because obviously that would be slightly offputting. i was also warned it may irritate pets. but of course it would be better to stop a would—be burglar at the first hurdle, the front door. this isn't the first smart bell that i've shown you but it is claiming to be the first that offers person detection and facial recognition. simon is at the front door. simon's at the front door! hello, simon. i'm just going to come and get you. full functionality does require a subscription. it can then recognise faces as well as unlock live video recordings, which can be available up to five days after they were captured. you can also pretend to be in when you're out. or, of course, vice—versa. they do say there's safety in numbers, though, so maybe you'd like some company.

if you were starting to think your home virtual assistant was a little bit low—tech, then maybe it's because you've been waiting for a home robot. now here you can do video calls hands—free. it also has the other functions that you'd expect from a virtual assistant. ijust need to introduce myself. there we go. it knows who i am. so come with me. slightly unnerving. great. i think my phone just needs a bit more power. put that there. i think actually, sadi, you look a bit thirsty. i will pass you a drink. no need to move. hey, temi, go to the sofa. i am on my way to the sofa. brilliant, thanks.

it recognised "go to the sofa," it's just not done it. hey, temi, go to the sofa. i didn't get that. go to the sofa. i'm going to the sofa. thank you. it does need a strong wi—fi connection and we all know voice recognition still has a way to go but still, you'd better make sure that your guests weren't thirsty. welcome, astronaut. you are about to embark on your first extravehicular activity on the moon. the suit will be wearing consists of several elements to enhance your experience. a suspended safety harness, a personal telemetry system to track your body movements, and finally, samsung gear vr headset and controller to help you see objects in your environment. in the run—up to the 50th anniversary of the apollo 11 moon landing next year, creative studio framestore and samsung have been

touring the world with their lunar vr experience called a moon for all mankind. only 12 white male american astronauts have walked to the moon. no other nationalities or gender or races, so i like the idea of opening up the moon for everybody. while vr headsets can track will respond to your head movements and some will allow you to move around in 3—d virtual space, to really feel like you are on the moon, you are going to have to lose some weight. this beast is based on nasa's own variable gravity simulator called argos, the active response gravity offload system. ok, the rig is now going to weigh me. and then work out what my weight would be on the moon. and then it knows how much extra lift to give me whenever ijump

and how slowly, to make me descend, in order to simulate one—sixth gravity. wow. this is what it feels like to be on the moon. the experience hasn't even started yet and i'm having a good time. unlike more advanced vr headsets, the gear vr can only tell which way your head is pointing. the vertical position in the arms and the legs are tracked by the sensors on your suit. here we go to the edge of a crater now. the earth looks amazing. now unfortunately, if you are sensitive to a mismatch between your senses, the fact that you think you are moving forward across the lunar surface whereas actually you are going up and down may cause a little bit of discomfort. i'm going to get out of here because there seems to be a meteor shower. it certainly makes brain exhilarating ride, though. definitely more dramatic than any of the lunar astronauts would have wanted.

oh, my goodness. my helmet has cracked. mission accomplished! how's that? i survived, but it was close. well, that was certainly an experience that you can't get welcome is it for shortcut of click this week. the full—length version is up on! this week. the full—length version is up on i player to watch any time you fancy, including out, and we are on twitter and facebook as well. thank you very much for watching and we will see you soon. hello and welcome to newswatch with me, samira ahmed. the bbc has decided not to appeal against the courtjudgment that it seriously infringed the privacy of sir cliff richard. what lessons has it learned from the episode? and with the bill for fighting the case set to rise beyond £2 million, will anyone be losing theirjob as a result? sir cliff richard announced this week he would soon be releasing a new album, which would reflect, as he put it, a bad period in his life.

the singer was referring to bbc broadcasts four years ago