. >> reporter: drawn by animator eric goldberg, a movie made by our parent company, disney. >> he just speaks to robin's immense abilities and warmth. >> 10,000 years will give you such a crick in the neck. >> reporter: this was a role created for williams, in a time before big movie stars voice animated movies and a time before real belly-laugh humor was a cornerstone of big-screen cartoons. >> but never duplicated. duplicat duplicated. >> reporter: robin williams' genie changed all that. >> we were animators. >> reporter: the directors took a risk and wrote the role for williams. and to convince him to take it, goldberg animated lines from an old williams comedy album. >> before we do the play, i want to talk about the serious subject of schizophrenia. >> i had the genie grow another head to argue with him in the animation. that clicked with him. >> there was a script. we started with a script. >> aladdin. nice to have you on the show. can we call you al? maybe just din. >> when we got robin in the booth, if that's a road map, then robin took lots of detours. >> there's a popsicle st

eric goldberg animated his genius. >> it speaks to robin's immense ables and warmth. >> 10,000 yearsl give you such a crick in the neck. >> reporter: the role was created for williams by directors ron clements and john musker. >> we had a script. >> aladdin. call you al? just din? laddie. >> when we got robin in the booth, if that's a road map, then robin took lots of detours. >> let's blow this pop sick kl stand. >> we have so much stuff, let's do it again. >> the ever-impressive -- here's the deal. >> he can do so much with his voice to make it expressive, to make it change mootds, to make it be different characters. >> and to have that voice attached to that brain -- >> yeah, exactly. >> come on, kid, got to get the snakes, eh? >> a mind that was special and unique and went to places that most of us have never been. >> he was a real-life genie. you know? and, boy, did he grant our wishes. >> no matter what anybody says, you'll always be a prince to me. >> reporter: nick watt, abc news, los angeles. >> his humor will never get old. still laughing, right? >> glad he took the detours

eric goldberg animated william's genius. >> it just speaks to robin's immense abilities and warmth. >orter: the role was created for williams by directors ron clements and john musker. >> there was a script, we started with a script. >> hello, aladdin, nice to have you on the show. >> and when we got robin in the booth, if that's a road map then robin took lots of detours. >> let's blow this pops sickle stand. >> we would be at a point where we thought, we've got so much stuff this is incredible and he would be, "let me do it again." >> all right, sparky, here's the deal. >> he can do so much with his voice to make it expressive and change moods to make it be different characters. >> to have his voice attached to that brain. >> exactly. >> c'mons, kid. >> a mind that was special and unique that went to places that most of us have e never been. >> he was a real life genie and boy did he grant our wishes. >> you'll always be a prince to me. >> nick walt, anc news, los angeles. >>> a real life genie. that's going to do it for "world news" on a sunday night. "gma" first thing in the morni

plus the genius of robin williams, i'll talk to eric goldberg about williams genius in the film aladdin. that's 11:00 eastern. >>> for the first time in the nobel prize, maryam mirzakhani, took home the math's most presss contingentous award. contingent -- pres prestigious . i'm john siegenthaler, i'll see you back here at 11:00 eastern. america mobile app, available for your apple and android mobile device. download it now >> on "america tonightmentment" a rising tide of trouble. rushes of water so great it's killed people in their homes and sent divers searching the streets for survivors. what's behind the growing number of devastating flash floods. one hint: it's not just rain but what's under foot. >>> also tonight, potatoes, not pot. at the intersection of states pushing the frontiers of marijuana legislation, idaho just says

we hear from eric goldberg, the artist that was able to capture the unique personality of robin williams in a cartoon. >> 10,000 years will give you such a crick in the neck. >> working with robin williams, in aladdin was such a dream project. what people might think about him, he didn't bounce off the walls all the time. in fact he was a rather contained person when he wasn't on the mic. bun when they opened up the mic he could go for an hour, two hours straight. and give 150%. robin's comedy rift off of the album. it was a great choice of life was the fact that he really laughed at the animation tests that he saw. when he was recording the song "friend like me" he wanted robin to sing the song absolutely correctly, specifically. which robin did quite dutifully. and once he got the take he wanted, john and ron pulled him aside and said you are a gas station attendant here, and a fairy god mother here. he nailed it in two takes. robin was so appreciative of the animation, he's a big animation fan. i mean, why shouldn't he be? >> woe do certain things just to try it out. we had no idea wh