By Jonathon Dornbush
Updated January 20, 2016 at 04:08 PM EST

Zac Efron and Robert De Niro may have worked together on the upcoming Dirty Grandpa, but the Oscar-winning De Niro still has plenty to teach his up and coming costar. In a new Funny or Die video, De Niro tells his on-screen grandson that he has a metaphorical acting lesson planned — but really, all he wants from Efron is a good sandwich.

Efron eats up De Niro’s pearls of wisdom, including handed-down pieces of advice from Marlon Brando, and Judi Dench’s age-old acting axiom, “Don’t put too much turkey on the sandwich.” Efron obediently follows De Niro’s step-by-step instructions, hoping to live up to the master’s expectations.

Find out if he does in the video below. Dirty Grandpa opens in theaters on Jan. 22.Robert De Niro Tricks Zac Efron Into Making Him A Sandwich from Funny Or Die