It’s understood that Christopher Plummer, who will forever be known as Captain Georg von Trapp, is not exactly the biggest fan of The Sound of Music. As noted in IMDB.com,
Christopher Plummer intensely disliked working on the film. He’s been known to refer to it as “The Sound of Mucus” or “S&M” and likened working with Julie Andrews to “being hit over the head with a big Valentine’s Day card, every day.” Nontheless, he and Andrews have remained close friends ever since.
One of my kids is obsessed with The Sound of Music. She knows all the songs by heart. And frankly, since it runs 174 minutes, it’s easy to play the DVD and have her enjoy at least part of the film if need be (and it’s better than, say, three hours of Wow! Wow! Wubbzy!). But I know way more of the musical than any man should. So when Seth McFarlane poked fun of Christopher Plummer before introducing him, I doubled over in laughter—note the panicked look on his face à la Uncle Max and the spot-on music from that very scene. It was for me the funniest bit of the Oscars—well, that and Kristen Stewart.