Emma Stone [1] showed love for her costar Joaquin Phoenix [2] when the actors hit the red carpet at the LA premiere of Irrational Man on Thursday. She wore a white dress with printed heels for the big night and was all smiles as she posed for pictures. At one point, Emma linked up with both Joaquin and actress Parker Posey [3] to snap photos. Keep reading to see all the best pictures of Emma at this week's premiere, then check out the trailer for Irrational Man [4], Woody Allen [5]'s new film.