Here's what we know:
* Initial reluctance: Plummer initially turned down the role, considering it "saccharine" and not something he wanted to be known for.
* Criticism: He openly criticized the film and his performance, referring to it as "terrible" and "awful."
* A change in tune?: In later years, he softened his stance somewhat, acknowledging the film's immense popularity and his own contribution to it. However, he never fully embraced the role or the movie.
So, while he professionally fulfilled his obligations and delivered a strong performance, it's safe to say Christopher Plummer did not enjoy his experience making "The Sound of Music."
It's a fascinating story of an actor grappling with a role that catapulted him to fame, but one he personally disliked.