Ben Affleck is doing "great" following his split from Jennifer Garner. The actor was seen wearing his wedding ring at the premiere of 'Project Greenlight' in Los Angeles last night and though he didn't stop to speak on the red carpet, his friend and co-producer Matt Damon insists his pal is doing well. Matt said: "He's great, he's great. He's got a big smile on his face." Ben turns 43 on August 15, but Matt isn't planning to do anything special for his friend's birthday. He joked to People: "Yeah, I wish him well, but he's 43, it's kind of like, meh. What is 43? It's not 40, it's not 45, it's 43. It's a forgettable birthday."