What is The War with Grandpa?
{{italictitle}} {{Infobox film | name = The War with Grandpa | image = | director = [[Tim Hill (director)|Tim Hill]] | producer = {{Plainlist| * Marvin Peart * Rosa Morris Peart * [[Phillip Glasser]] }} | screenplay = {{Plainlist| * [[Tom J. Astle]] * [[Matt Ember]] }} | based_on = {{Based on|''The War with Grandpa''|[[Robert Kimmel Smith]]}} | starring = {{Plainlist|<!--PER POSTER BILLING BLOCK--> * [[Robert De Niro]] * [[Uma Thurman]] * [[Rob Riggle]] * [[Oakes Fegley]] * [[Laura Marano]] * [[Cheech Marin]] * [[Jane Seymour (actress)|Jane Seymour]] * [[Christopher Walken]] }} | narrator = | music = [[Aaron Zigman]] | cinematography = Greg Gardiner | editing = {{Plainlist| * Peter S. Elliot * Craig Herring }} | studio = {{Plainlist| * Marro Films * Sigh Films * West Madison Entertainment * Tri-G Films * [[Emmett/Furla Oasis]] }} | distributor = {{ubl|101 Studios|Brookdale Studios}} | released = {{Film date|2020|8|28|Lithuania|ref1=<ref>{{cite web|url=https://www.the-numbers.com/movie/War-with-Grandpa-The-(2020)/Lithuania#tab=summary|title=Lithuania Box Office for Karas su seneliu (2020)|work=The Numbers|access-date=September 11, 2020}}</ref>|2020|10|9|United States}} | runtime = 94 minutes | country = United States | language = English | budget = $24 million | gross = $6.9 million<ref name=BOM>{{cite web|url= https://www.boxofficemojo.com/title/tt4532038/?ref_=bo_se_r_1 |title= The War with Grandpa (2020)|work=[[Box Office Mojo]]|access-date=October 16, 2020}}</ref><ref name=NUM>{{cite web|url= https://www.the-numbers.com/movie/War-with-Grandpa-The-(2020)#tab=summary |title= The War with Grandpa (2020)|work=[[The Numbers (website)|The Numbers]]|access-date=October 16, 2020}}</ref> }} '''''The War with Grandpa''''' is a 2020 American [[children's film|family]] [[comedy]] movie directed by [[Tim Hill (director)|Tim Hill]], from a screenplay by Tom J. Astle and Matt Ember. It is based on a book o