zachary quinto. stay with us. zachary quinto is a talented actor whose credits include "he rose -- heroes." his latest project is called "margin call." it opens in theaters around the country this weekend. >> what does your model say that means for us here? >> that is where it becomes a projection, but -- >> you are speaking with me, mr. solomon. >> sir, if those assets decrease by just 25% and remain on our books, that loss would be greater than the current market capitalization of this entire company. >> so, what you are telling me is that the music is about to stop. >> -- tavis: that is the best you could do for your film -- jeremy irons, kevin spacey? >> it does not get any better than that. stanley tucci, paul betony -- bettany. it is an incredible group of people. tavis: since you just ran that list, that is an all-star cast. what is it about this project that allowed you, as producer, to pull all of those folks to gather around this story line? >> i think it was the material, the caliber of the material, th

also, zachary quinto is here. he is out in a timely film about wall street called "margin call ."ng up, right now. >> every community has a martin luther king boulevard. it's the cornerstone we all know. it's not just a street or boulevard, but a place where walmart stands together with your community to make every day better. >> nationwide insurance supports tavis smiley. with every question and every answer, nationwide insurance is proud to join tavis in working to improve financial literacy and remove obstacles to economic empowerment one conversation at a time. nationwide is on your side. >> and by contributions to your pbs station from viewers like you. thank you. [captioning made possible by kcet public television] tavis: alfredo quinones- hinojosa is a renowned neurosurgeon and director of the pituitary tumor center at johns hopkins. his remarkable path from mexico to the united states is the subject of a new memoir, "becoming dr. q: my journey from migrant farm worker to brain surgeon." an honor to have you on this program. i just want to touch this hand. >> i am honored t