Adam Levine & Keira Knightely Begin Again In New Trailer

We loved the musical movie Once for its realistic, tune-filled story of two musicians falling in love. So we're certain that we'll also love Begin Again, the latest from Once's writer/director John Carney. This time, instead of an unknown Irish couple making music together in Dublin, Keira Knightley jams with Mark Ruffalo and CeeLo Green in New York City, while her ex-boyfriend (a rockstar, natch) is played by the very bearded Adam Levine. Those hoping for a glimpse of Taylor Swift will be disap...