George Clooney and Julia Roberts were really cool. George arrived first, while Julia turned up holding a glass of water. I told her to watch the small step and she pretended to fall and spill the water over me.

George Clooney and Julia Roberts were really cool. George arrived first, while Julia turned up holding a glass of water. I told her to watch the small step and she pretended to fall and spill the water over me. © François Berthier / Getty Images