Kate Bosworth and Michael Polish were both dressed in denim as they stopped by Beverly Hills eatery Jack n' Jill's yesterday. She put an arm around her guy as they headed back to their car after lunch. The pair is back in LA after hitting up the first round of Coachella a couple of weeks ago. Kate was one of the guests of honor at Mulberry's star-studded pool party, but she and Michael spent much of their time on site at the festival checking out the bands hand in hand. The couple, who first worked together on the movie Big Sur, has been dating for about nine months. They were first spotted out together last August at a Coldplay concert in LA, and shortly after that, they made a PDA-packed red carpet debut as a couple at the Deauville Film Festival in France.