Robert De Niro and Zac Efron star in first Dirty Grandpa trailer

The first trailer has appeared online for Dirty Grandpa, in which Zac Efron and Robert De Niro head off on a Spring Break road trip together. The former is about to get married and the latter has just buried his wife, so what better way to mark the occasion than by heading off to Daytona to smoke crack with some teenagers?

In this peculiar double-act, Efron is playing the buttoned-down straight man, while De Niro has a high old time hitting on a bunch of bikini-clad women a third of his age. However, it isn’t long before ol’ Grandpa persuades his young wing-man to go wild.

Check out the new trailer below…

It's good to see Aubrey Plaza helping herself to all the best lines, with “I want you to tear open my bra like it’s a social security cheque” a strong contender for the official tagline. Directed by Dan Mazer and co-starring Julianne Hough, Zoey Deutch and Dermot Mulroney, Dirty Grandpa will open in the UK and US on January 22 2016.

George Wales

George was once GamesRadar's resident movie news person, based out of London. He understands that all men must die, but he'd rather not think about it. But now he's working at Stylist Magazine.