Chandler Darby and Julianne Hough in Dirty Grandpa (2016)

Robert De Niro and Zac Efron in Dirty Grandpa (2016)

Dermot Mulroney, Catherine Dyer, and Julianne Hough in Dirty Grandpa (2016)

Zac Efron and Zoey Deutch in Dirty Grandpa (2016)

Robert De Niro, Zac Efron, Aubrey Plaza, Jeffrey Bowyer-Chapman, and Zoey Deutch in Dirty Grandpa (2016)

Still of Robert De Niro, Zac Efron, and Deena Dill in Dirty Grandpa (2016)

Robert De Niro, Zac Efron, and Robert Bryce Milburn in Dirty Grandpa (2016)

Jeff W. Curtis, Tommy Lohmann, and Zac Efron in Dirty Grandpa (2016)