Conversation so far:
What movie did Judy Garland make a hollywood comeback with?
Garland appeared with James Mason in the Warner Bros. film A Star Is Born, the first remake of the 1937 film.
What is another film title Judy Garland played a part in besides A Star is Born?
Garland's films after A Star Is Born included Judgment at Nuremberg, the animated feature Gay Purr-ee, and A Child Is Waiting with Burt Lancaster.

Question: What part did she play in A Star Is Born?
Self-contained rewrite: What part did Judy Garland play in A Star Is Born?