The War with Grandpa

The film is about a young boy named Peter (Oakes Fegley) who fights in a prank war with his grandfather (Robert De Niro) to get his grandfather to move out of his room after he moves in with his family. Peter's teenage girl, Mia, is also a part of the family. Peter pulls a series of pranks, including replacing Ed's shaving cream with quick-drying foam and damaging his record player, while Ed gets back at Peter with pranks such as removing all of the screws from Peter's furniture and rewriting his school report. The film follows the escalating prank war between Peter and his grandfather, with the two eventually learning to put aside their differences.