Actor George Clooney gears up to play a trick on Brad Pitt

Brad Pitt has warned George Clooney not to play practical jokes on his kids.

The best friends are famous for their on-set trickery and it looks like actor George is planning to launch his next attack at The Oscars later this month.

‘It could all go down then,’ says George, 50.

‘I hope not because it could be bad.’

But George – who recently admitted he ‘shouldn’t be a parent’ – has strict instructions to keep away from 48-year-old Brad‘s brood of 6.

Brad has said to me, “Just don’t harm the children”,’ George told Extra. ‘That seems fair.’

PHOTO GALLERY SPECIAL How celebrities like George Clooney have changed over the years>>

George Clooney‘s battle for the role of Steve Jobs>>

George Clooney‘s first ever orgasm>>

George Clooney shows off gorgeous Stacey Keibler in London>>

Esme Riley