There is not much to say about the movie. Danny (Sandler) is a plastic surgeon, Katherine (Aniston) his assistant. He is playboy using false wedding ring to get women in bed, while she is single mother focused on her kids. Danny finds a younger girl Palmer that he really likes, but tangles himself in complex net of lies. Things will culminate on a trip to Hawaii where they are joined by Katherine's children, Danny's brother and Katherine's high-school nemesis (played by Nicole Kidman).
Jokes were actually pretty good. Even though there are kids in the movie, which for me usually signifies a bad movie, this is not really movie for kids. There is mild cursing and sexual associations (some of which are very funny). There is a bit forced faces and screaming but not too much to feel stupid for watching. Acting is good for comedy of this level.
All in all, "Just Go with It