Zac Efron and Robert De Niro are Having a Blast in ‘Dirty Grandpa’ Trailer

This looks like fun. Zac Efron plays Robert De Niro's grandson in the upcoming movie Dirty Grandpa on Jan. 22. The film revolves around Efron's grandfather going on a trip to Florida and him accompanying him before his wedding. The film looks hilarious, plus a shirtless Zac Efron is what everyone wants. Watch and enjoy.