Robert De Niro and Zac Efron star in first trailer for ‘Dirty Grandpa’ – watch

De Niro stars as the title character, with Efron as his uptight grandson

The first trailer for upcoming raunchy comedy film Dirty Grandpa starring Robert De Niro and Zac Efron has been released.

De Niro stars as a retired army general with a formidable libido who tricks his uptight grandson, Efron’s Jason, into driving him to spring break right before Jason is due to get married.

The film’s supporting cast includes former Parks And Recreation actress Aubrey Plaza, who also features heavily in the trailer, as well as Dermot Mulroney, Julianne Hough and Adam Pally.

Dan Mazer, co-writer of Borat and Ali G Indahouse, directs from a script by newcomer John Phillips. Dirty Grandpa will be released in cinemas in the UK and the US on January 22, 2016.