IMDb 5.7 2020 HD

The War with Grandpa

The War with Grandpa

2020
Comedy Family
98 min PG USA
6.438 / 10
5.7 IMDB

Peter is thrilled that his Grandpa is coming to live with his family. That is, until Grandpa moves into Peter's room, forcing him upstairs into the creepy attic.…

Personnel // Cast & Crew

Director Tim Hill / Alan Steinman / Jeff J.J. Authors / Jillian Amburgey / Gregory Santoro / Aimee Pierson
Starring
Robert De Niro / Uma Thurman / Rob Riggle / Oakes Fegley / Laura Marano / Cheech Marin / Jane Seymour / Christopher Walken

How Viewers Describe This Film

Common themes and sentiments

amusing predictable lighthearted charming familiar comedic gentle uninspired serviceable family-friendly entertaining

Reviews

S
Sophia Chen
Apr 3, 2026
3.0 / 5
3.0

In 'The War with Grandpa', the seasoned charm of Robert De Niro is the undeniable pillar. He embodies the titular grandpa with a blend of roguish humour and underlying affection, making the escalating prank war with young Peter…

L
Liam O'Connell
Apr 3, 2026
2.0 / 5
2.0

One approaches 'The War with Grandpa' with certain expectations, largely met by its star-studded cast and familiar plot. Robert De Niro is, predictably, the main draw, lending his gravitas to the role of a grandfather whose presence disrupts…

I
Isabelle Dubois
Apr 3, 2026
3.5 / 5
3.5

This is a film that understands its audience and delivers accordingly. 'The War with Grandpa' leverages Robert De Niro's iconic presence for maximum comedic effect, pitting him against a determined Oakes Fegley. The ensuing battle for Peter's room…

M
Marcus Bellweather
Apr 3, 2026
2.5 / 5
2.5

'The War with Grandpa' banks heavily on its star power and a simple, relatable conflict. Robert De Niro plays the titular grandpa with a twinkle in his eye, engaging in a series of escalating pranks with his grandson,…

E
Eleanor Vance
Apr 3, 2026
3.0 / 5
3.0

Robert De Niro leads a spirited, if predictable, family comedy in 'The War with Grandpa'. The premise, a boy versus his grandfather for bedroom supremacy, offers ample opportunity for slapstick and mild mischief, which the cast largely delivers.…

FAQs

The core of the film's narrative revolves around Peter's determination to win back his bedroom after his grandfather moves in and occupies it. This desire fuels a series of escalating pranks and counter-pranks, transforming a simple living arrangement into a full-blown, albeit comically staged, domestic war.