George Clooney verses Russell Crowe and Leonardo DiCaprio
This three-way feud is rough. Things started up when Crowe accused Clooney of being a sellout. When Clooney was asked about that comment, he said, "The truth is that he did send me a book of poems to apologize for insulting the s*** out of me, which he did." Then he called Crowe a Frank Sinatra Wannabe.
Clooney wasn't done yet, though. He went on to insult Leonardo DiCaprio and his basketball skills during an interview... Completely unprompted, by the way. It was a super weird interview.