Conversation so far:
when did Stan Laurel get a contract wiht 20th century fox?
In 1941, Laurel and Hardy signed a contract at 20th Century Fox.
What is something interesting that happened during this period?
During the war years, their work became more standardised and less successful, though The Bullfighters and Jitterbugs did receive some praise.
what films did they make during this period?
The Bullfighters and Jitterbugs.
how long was he with 20th century fox?
CANNOTANSWER.

Question: did he have any problems during this time period?
Self-contained rewrite: did Stan Laurel have any problems during his time with 20th Century Fox?