Peter and his grandpa used to be very close, but when Grandpa Jack moves in with the family, Peter is forced to give up his most prized possession: his bedroom. Peter will stop at nothing to get his room back, scheming with friends to devise a series of pranks to drive him out. However, grandpa doesn't give up easily, and it turns into an all-out war between the two.
- " All of the antics provide the film with some easy laughs that will certainly leave kids howling, and adults may even find themselves enjoying it too especially at the hands of Rob Riggle and Uma Thurman. " – Paul McGuire Grimes (KSTP-TV, St. Paul, MN)
- " Robert De Niro is a charmer and a sharp opponent in this family friendly comedy that offers a nice respite in tough times. " – Pete Hammond (Deadline Hollywood Daily)
- " Mischievous slapstick comedy has multi-generational appeal. " – Tara McNamara (Common Sense Media)