Conversation so far:
When did Rita Hayworth return to Columbia?
By the time she returned to the screen for Fire Down Below (1957), Kim Novak had become Columbia's top female star.
Why did she return to Columbia?
CANNOTANSWER.
Did she leave Columbia again or stay there?
Her last musical was Pal Joey (1957).
After this film, Hayworth left Columbia for good.
Where did she go after leaving Columbia?
CANNOTANSWER.

Question: What did she do when she returned to Columbia?
Self-contained rewrite: What did Hayworth do when she returned to Columbia?