Comedian Sacha Baron Cohen appears as Ali G, a rapper-wannabe from Staines. Ali G has his own TV show, where he interviews people on serious subjects. They're not aware that Ali G is just a character and they're being set up as part of a comedy act. Cohen also appears in two other guises: as Borat, a Kazakhstani reporter, and Bruno, a gay Austrian fashionista. Hilarity ensues.