Sandra Bullock, George Clooney abandon makeup for 'Gravity'

Sandra Bullock and George Clooney will appear without makeup in Gravity.

The Extremely Loud and Incredibly Close actress has suggested that co-star Clooney's concerns about appearing in 3D in Alfonso Cuaron's movie were due to the detail of their faces that would be displayed.

"God help us all when my face comes rushing at you with no makeup on," Bullock told USA Today.

"I'm going to apologise now, but Alfonso, in a brilliant move, said, 'No makeup'. Our vain little heads are going to be some massive 17-foot image. You are going to see details because it's shot on this digital film that shows everything. It's so scary."

Bullock added: "There are scenes where you say, 'This is where you have to let go and let God [take over]'. And, thank God, there are no nude scenes."

The Children of Men director's sci-fi film Gravity stars Bullock as a medical engineer who finds herself tethered to a veteran astronaut (Clooney) and floating out into space with no hope of rescue following the destruction of their shuttle.

Gravity will open in cinemas on October 19.

Watch a trailer for Extremely Loud and Incredibly Close below: