'War with Grandpa' trivia and fun facts

Actors

Uma Thurman & Robert DeNiro previously starred together in Mad Dog & Glory (1993)

The second movie that both Christopher Walken and Robert De Niro appear in together, with the first being 'The Deer Hunter'.

Based on the children's book of the same name by Robert Kimmel Smith in 1984.

This film is the second one that De Niro has starred in that has the word 'Grandpa' in the title