Conversation so far:
What was Alejandro Jodorowsky's first fil in 1990 called?
El Topo.
What award did he win?
CUFF.
What does this stand for?
Chicago Underground Film Festival.
What award did he win?
Jack Smith Lifetime Achievement Award.
Did they show his films?
Jodorowsky attended the festival and his films were shown, including El Topo and The Holy Mountain, which at the time had grey legal status.

Question: What did this mean?
Self-contained rewrite: What does a film with grey legal status mean?