Maybe Ryan Phillippe should have taken his date to see “Magic Mike.” The “Damages” star, 37, and his girlfriend Paulina Slagter, 20, were spotted at an LA nightclub this week, and spies told us Slagter was “so low-key, she almost looked bored.” The pair slipped in through an alley, then met pals including the ex-wife of drummer Travis Barker, former Miss USA Shanna Moakler. Phillippe and the reported Loyola Marymount University student have dated since December.