HOLLYWOOD — The Los Angeles premiere of Tom Cruise starrer “Valkyrie” at the DGA Thursday was classy and on the smallish side.A red carpet was set up inside the lobby, and press got plenty of time to chat with Cruise and director Bryan Singer. It’s only the second release from MGM subsid United Artists, so there’s plenty riding on the pic. “It’s nice to finally talk to people who have actually seen the movie,” said Singer, alluding to all the gossip about the film, based on the German colonel who led a plot to assassinate Hitler. After the screening, guests returned to the lobby for appetizers and dessert. Cruise was surrounded by friends and fans while Singer stood several feet away, sporting his own welcoming committee.