Art seems to be imitating life for actor Gretchen Mol in her new film, the latest Ed Burns project, “Millers in Marriage.” It’s not the plot of the movie, which covers three complicated and troubled marriages and relationships. That does not mirror her life. But Gretchen plays a character who is a middle-aged woman trying to figure out the next chapter, when Gretchen herself is a middle aged actor who has worked consistently while raising a family and is now thinking about the next chapter.
