Gru - the loveable Steve Carrell-voiced character at the centre of the franchise - has a twin brother we never knew about.
Dru has a lot more hair than his sibling and is considerably more cheerful - a personality trait which sometimes rubs his brother up the wrong way.
But despite that, the pair team up in the film for an adventure we couldn't possibly give you any details of here lest we attract the ire of the spoiler police.
The despicable duo join a long list of famous twins.
