Actor Christopher Guest Talks 'This Is Spinal Tap' At New York Film Festival

The 1984 rockumentary This is Spinal Tap has legions of loyal fans, and actor Christopher Guest spoke about the iconic movie recently at the New York Film Festival.

Guest, who played Nigel Tufnel in the fictional band, touched on a variety of Spinal Tap topics at a Q&A event after a screening of the movie, The Hollywood Reporter notes.

"People say things if they're walking past that are from the movie and it takes me a moment to know if I'm hallucinating...it's odd," he said about encounters with fans of the movie. The actor also admitted that while he doesn't have a favorite scene specifically, he enjoys when the whole band gets together on screen.

"I liked the scenes where we're all interacting because it's improvised and you see people kind of playing music with each other as opposed to when you're set up," he said. "If I'm being interviewed by Rob Reiner, it's a slam dunk because you're basically being set up...With other people it's more of a musical group playing and weaving in and out."

The members of Spinal Tap -- Guest, Michael McKean and Harry Shearer -- have actually toured in the past as the fake group. For the 25th anniversary of the film in 2009, the group put out an album of new and old material before hitting the road on the "Unwigged & Unplugged" tour.

"It remains the funniest, truest, most emotionally honest movie ever made about rock & roll and the people who live for it," Rob Sheffield wrote about the movie for Rolling Stone in March. "Most sacred things are ridiculous - that's the whole point of the movie."