J.K. Simmons and Cory Michael Smith talk recreating Milton Berle and Chevy Chase vibes in Saturday Night — and the time a prosthetic penis fell off

Cory Michael Smith had some big shoes to fill with his latest role. The Saturday Night actor recently opened up about the “terror” of mastering his portrayal of Chevy Chase and his “very compulsive” process to prepare for the film,

"It was such an honor that I did not want to mess this up, and I didn't want to mess my career up," the actor tells PEOPLE