very funny !!!!! it is R rated for those with children . Robert De Nero and Zac Efron made the movie .

A laugh out loud (to the point of tears!) comedy that had a surprisingly serious reason for Gramps to want to take his grandson on a road trip. Fast-paced, witty, and highly enjoyable, you'll go back a second time....or even a third...to make sure you catch all the hilarious moments.

Amazing. The funniest comedy I've seen in a long time.

Great Movie, so funny!Which to be a dirty Grandpa like Robert De Niro lool