Arnold Schwarzenegger and Johnny Knoxville are just a few of the many who attend The Last Stand premiere and after party; Jim Jefferies, John Landgraf and others attend the premiere screening and after party for "Legit"; Patrick J. Adams, Meghan Markle and other stars of "Suits" step out for a screening and panel at The Paley Center for Media; President Bill Clinton, Kobe Bryant and Adam Lambert celebrate the grand opening of Step Up on Vine; Genlux cover girl Kristin Chenoweth celebrates the opening of Riviera 31 with Kathy Griffin and other TV stars—get the full rundown on Monday and Tuesday's top L.A. events in this installment of Last Night's Parties.