Sandra Bullock made pact with George Clooney to stop his pranks

Sandra Bullock made sure that her co-star George Clooney curbed his pranks while shooting for the upcoming film 'Gravity'.

'The Proposal' star stated that she and Clooney had a settlement that he won't practise his notorious 'practical jokes' on the sets as it was not the right place to prank, the Daily Express reported.

The 48-year-old actress revealed that the film - which is about astronauts attempting to return to Earth after debris crashed into their space shuttle - was so tough that it left no time for pranks and jokes as they were hanging from a scaffold with 12 wires, rigged up all day.