I always differentiate between the artist and his or her work.
What happened during the shooting? Is the producer a pervert? Have animals been killed on set?
Seriously, I couldn't care less.
Maybe Egon Schiele had a relationship with a minor (we don't know for sure) - should we ignore his paintings?
Richard Wagner was an anti-Semite (that's a fact) - does this change his music?
Harvey Weinstein sexually exploited many women - is Pulp Fiction a different film now?