Anthony Harvey/Shutterstock Greta Gerwig and Noah Baumbach are in the movie-making business — but they choose to keep their romance out of the limelight whenever possible. The twosome began as coworkers in 2010 when Gerwig played Florence in Baumbach’s Greenberg. Later that year, Baumbach split from Jennifer Jason Leigh, with whom he shares son Rohmer,…
