Here's a lesson for everyone: don't pull George Clooney into feuds with Gwyneth Paltrow. The actor joked about the rumors surrounding Gwyneth's now allegedly quashed feud with Vanity Fair in a behind-the-scenes clip about the making of the magazine's annual Hollywood Issue cover (which hits newsstands on Feb. 8). There were reports that in the middle of the feud, Gwyneth had convinced George to drop out of the cover photo shoot, which clearly was not the case. The best part? Julia Roberts's completely genuine reaction to George's dig. Watch the video above for George's quip plus Idris Elba, Chiwetel Ejiofor, and more stars talking about the shoot.