Kristen Stewart, meanwhile, chatted away alongside Anjelica Huston, as Inglourious Basterds‘ Eli Roth cuddled up to his apparently new lady, Peaches Geldof. Rachel McAdams’ ex Josh Lucas gave some bunny ears to Sam Worthington and Carey Mulligan, while happy couples like Zac Efron and Vanessa Hudgens and Russell Brand and Katy Perry only had eyes for each other.