POPSUGAR Entertainment George Clooney George Clooney to Star in Gravity With Sandra Bullock George Clooney Replaces Robert Downey Jr., Boards Gravity by Entertainment 12/16/10 4 Shares Like us on Facebook Breaking casting news! The sci-fi film Gravity, which has already played musical chairs with its leading ladies (Sandra Bullock is now finally locked in to star), is swapping its leading man as well. Though Robert Downey Jr. was originally signed on as the film's main guy, the latest word is that George Clooney will be taking his place in the movie. Hey, if you can't have your first pick, Clooney is definitely an excellent second option! Image Source: WireImage Read More GravityMovie NewsGeorge ClooneyMovies George Clooney 11 George Clooney Facts You Probably Didn't Know POP 100: Who Is Your Favorite A-List Star? The Sweetest Moments of Amal and George Clooney's Year — So Far! Amal and George Clooney Totally Turned Up in Kentucky POPSUGAR, the #1 independent media and technology company for women. Where more than 75 million women go for original, inspirational content that feeds their passions and interests. Get the scoop with our daily newsletter Young Hollywood A-Listers TV Movies Sign up with By signing up, I agree to the Terms and to receive emails from POPSUGAR. 4 years I'm sure he'll be great in this movie.