I was watching Watchmen: The Ultimate Cut this evening. I'd seen the original back in the theater when it came out. During the opening credits I happened to see Gerard Butler's name come across the screen:
Not remembering him in the movie, I look to IMDB.com to figure out who he was in the movie, yet I don't find him there. I also looked on his credits and don't find the Watchmen there. Also, looking through the end credits, I don't see him listed there, either.