In the book, Grandpa Jack moves in because he is lonely and mourning his wife. Peter's friends, Steve and Billy, encourage him to use "guerrilla warfare" to get his room back.

While critics gave it generally negative reviews—often calling the humor uninspired or "cringy"—audiences and families have found it an enjoyable, lighthearted watch for kids aged 8 and up. It grossed roughly $43.4 million worldwide. The Original Novel

The movie is a family-friendly slapstick comedy that features a star-studded cast.

Searching For- The War With Grandpa In-all Cate... Official

In the book, Grandpa Jack moves in because he is lonely and mourning his wife. Peter's friends, Steve and Billy, encourage him to use "guerrilla warfare" to get his room back.

While critics gave it generally negative reviews—often calling the humor uninspired or "cringy"—audiences and families have found it an enjoyable, lighthearted watch for kids aged 8 and up. It grossed roughly $43.4 million worldwide. The Original Novel Searching for- The War with Grandpa in-All Cate...

The movie is a family-friendly slapstick comedy that features a star-studded cast. In the book, Grandpa Jack moves in because

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