Conversation so far:
Who is Cesar Romero?
Cesar Romero was an American actor, singer, dancer, and vocal artist.
Did Cesar Romero ever win awards for his acting?
What was something interesting about Cesar Romero I may not know?
Cesar Romero's wide range of screen roles included Latin lovers, historical figures in costume dramas, characters in light domestic comedies, and the Joker on the Batman television series.

Question: Was he in any of the Batman movies?
Self-contained rewrite: Was Cesar Romero in any of the Batman movies?