Adrian Grenier, the star of HBO's Entourage, has signed up an impressive list of actors to help out with his documentary, Teenage Paparazzi. According to The Hollywood Reporter, Alec Baldwin, Whoopi Goldberg, Eva Longoria, Rosie O'Donnell and other celebrities will be interviewed by the young actor about the nature of fame. Grenier can be seen in the latest season of Entourage which premieres September 7th.