Who even knows where it began, but at one point George Clooney put a sticker on Brad Pitt's car that said, "I'm gay and I vote." Another time, Pitt circulated an official memo to the crew of "Ocean's Twelve" insisting that Clooney be called "Mr. Ocean" for the entirety of the shoot. Clooney put another bumper sticker on Pitt's car that questioned the size of his manhood. Pitt once took out gag ads in the Hollywood trade papers making fun of Clooney being twice named People magazine's "Sexiest Man Alive." Clooney said he texted Pitt after the trade ad incident: "You won't know where, you won't know when ..." Pitt texted back: "It's war." Photo: Brad Pitt, left, better watch his back. George Clooney is behind him. The pair cemented their relationship when they joined "Ocean's Thirteen" producer Jerry Weintraub and co-star Matt Damon to put their hands in concrete in front of the Grauman's Chinese Theater in 2007.
Gary Friedman / Los Angeles Times
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