Conversation so far:
who plays young christine baranski in mamma mia
Jessica Keenan Wynn plays young Christine Baranski in Mamma Mia! Here we go again.
what is jessica keenan wynn known for
Jessica Keenan Wynn is known for her roles as Heather Chandler in Heathers: The Musical, Dina in Forever and Young Tanya in Mamma Mia! Here We Go Again.

Question: is the musical based on the movie
Self-contained rewrite: is heathers: the musical based on the movie heathers