Helms reflected on the enduring, and cross-generational, appeal of the gross-out buddy comedy.

Just what is that magic trick?

The Hangoveris a paragon of crudity.

THE HANGOVER, from left: Zach Galifianakis, Bradley Cooper, Ed Helms,

Zach Galifianakis, Bradley Cooper, and Ed Helms in ‘The Hangover’.Frank Masi/Warner Bros./Courtesy Everett

He continued, “It’s a grown-up set.

It’s not like other comedy movies I’ve been on where it feels like a party.”

HOLLYWOOD, CA - MAY 19: Bradley Cooper, Zach Galifianakis, Ed Helms and Director Todd Phillips at Warner Bros. Premiere of “The Hangover Part II” at Grauman’s Chinese Theatre on May 19, 2011 in Hollywood, California

Bradley Cooper, Zach Galifianakis, and Ed Helms in 2011.Eric Charbonneau/WireImage