Robert De Niro stars in the new War with Grandpa trailer.

It’s old school vs new cool in the brand new trailer for War with Grandpa.

Sixth-grader Peter is pretty much your average kid-he likes gaming, hanging with his friends and his beloved pair of Air Jordans. But when his recently widowed grandfather Ed moves in with Peter’s family, the boy is forced to give up his most prized possession of all, his bedroom. Unwilling to let such an injustice stand, Peter devises a series of increasingly elaborate pranks to drive out the interloper, but Grandpa Ed won’t go without a fight. Soon, the friendly combatants are engaged in an all-out war with side-splitting consequences.

Based on the award-winning book by Robert Kimmel Smith, the film is directed by Tim Hill and also stars Uma Thurman, Jane Seymour, Christopher Walken and Oakes Fegley.

War with Grandpa is set to open in the UK on 16th October, with a US release on September 18th, 2020.

Check out the trailer above and tell us your thoughts below.