This is not a funny film. It thinks it's funny, sure, and there's enough terrible slapstick in there to make anyone cringe. But it's "zany" in all the wrong ways. It's not merely bad dad jokes, but great granddad jokes! You know it's a bad sign when you're checking how much is left every 20 seconds. And when the ending finally comes around... ARGH! Rarely does a movie make me so truly annoyed. I was gonna give it a 4, but the last 5 minutes forced me to deduct several points. It's just sooooo friggin terrible you want to punch the screenwriter. ARG!