Oh? Under the same circumstances?
Not from the film being lost, but from the actor being in poor health.
From Wikipedia:
Little’s talent for impersonation has been used in movies, when an actor’s dialogue was impaired by poor health. When David Niven proved too ill for his voice to be used in his appearances in Trail of the Pink Panther (1982) and Curse of the Pink Panther (1983), Little provided the overdub in Niven’s voice. He performed similar duties to dub James Cagney’s stroke-impaired voice in the 1984 TV movie Terrible Joe Moran, and in the 1991 TV special Christmas at the Movies by providing an uncredited dub for actor/dancer Gene Kelly who had lost his voice.