Chris Pratt: The aliens in 'The Tomorrow War' are scarier than Thanos

Chris Pratt says the aliens he's forced to fight in The Tomorrow War are "the most terrifying aliens I've ever seen on screen" — even compared to the likes of Thanos.

In the new blockbuster, Pratt plays science teacher and former military man Dan Forester, who is drafted to travel forward in time in order to fight aliens trying to wipe out the human race.

The Tomorrow War will stream exclusively on Amazon Prime Video from 2 July.