Just when we thought Robert De Niro couldn’t possibly get any cooler, the new movie trailer for Dirty Grandpa comes along and forces us to eat our words.

In the upcoming movie, Jason (Zac Efron) is getting ready to tie the knot to his boss’ daughter but before his wedding day, he must drive his grandfather (who’s recently lost his wife) down to Florida. What should be a perfectly innocent weekend turns into an hilarious road trip of debauchery, spearheaded by De Niro’s desire to get laid for the first time in 15 years.

While it’s not a movie for the whole family, Dirty Grandpa should be right up your alley if you like your comedy slapstick and very, very naughty. It theaters January 22, 2016.