I'm a big fan of the Pink Panther movies (the ones with Peter Sellers, not new ones with Steve Martin). But after watching The Life and Death of Peter Sellers, I'm left with the impression that the original The Pink Panther was intended to be a serious film, but Peter Sellers essentially tried to sabotage the production out of spite, turning it into a comedy, and subsequently turning it into the classic hit it became. The sequels all have much more of a comedy feel, which would be consistent with this sequence of events.
But how accurate was the portrayal of these events in The Life and Death of Peter Sellers? Can I read more about the dynamics that took place during the creation of the original movie and the sequel?