I agree. It was a funny movie. I didn't think I would like it - I'm more into action flix, but the characters were well thought out - mature and human in their actions and reactions.
Diane Keaton was great - though I'm not a huge fan - she seems to always play the same type of woman. Whiney, Crying, over-reacting, but she was perfect for this role. She even did the tough woman thing part well.
Jack Nicholson was charming and really getting more into the physical comedy. Really good movie. Fun to watch.