The War with Grandpa - watch online: streaming, buy or rent
Currently you are able to watch "The War with Grandpa" streaming on Strim or for free with ads on Pluto TV. It is also possible to rent "The War with Grandpa" on Apple TV, Blockbuster, Rakuten TV, TV 2 Play, SF Anytime, Viaplay online and to download it on Apple TV, Rakuten TV, SF Anytime, Viaplay, Blockbuster, TV 2 Play.
You can also stream the title for free on Filmoteket.