Bullock and Clooney star as astronauts in the sci-fi movie.
If given an option Louis, 3, would chose Clooney over his mother, reports contactmusic.com.
"My son thinks he's (Clooney) a very cool dude. If there's a choice between me, George and Alfonso, my son will leave me to be with George and these guys," Bullock said.
Directed by Alfonso Cuaron, "Gravity" is expected to release Oct 3.
--IANS (Posted on 11-09-2013)