Amusing but uneven follow-up to the 2007 movie “2 Days In Paris” finds Julie Delpy’s family coming to visit her and her boyfriend (Chris Rock) in New York. We previously met Delpy’s character Marion in the first movie, in which she traveled to Paris with her American boyfriend Jack (Adam Goldberg), who could barely handle her nutty folks or her former lovers. Now she and Jack have split up after having a son together, and Marion lives with Mingus (Rock), a radio host who has a child from a previous marriage. “I like the theme more than the execution,” a critic tells Marion during the opening of her photography show. I could say the same thing about the movie. The premise is there, and the actors do their job right, especially Rock and Delpy who work well as a team. But the story is too chaotic and eventually turns into a mess. A mess, but a likable mess nonetheless. I never complained while watching it. Delpy’s aim was clearly to provide some good, silly fun, and it shows. What works best is the culture clash between the crazy french family and the American uptightness. Rock, for once, plays the straight man, and he’s the guy who has to handle all this chaos. I still wish the movie turned out to be better than this. There’s nothing truly new here and that’s a bummer. It’s only the wild card energy of Delpy and her family that keeps you entertained for 90 minutes. Fair enough.