The clip above is from Glena, a documentary about a single mother in her mid-30's whose goal is to be a professional MMA fighter. The movie, which premiered on Showtime last night, explored what it means to follow one's dream while negotiating parental responsibility. Is Glena "Heartless" Avila selfish for undergoing the virtually nonstop training necessary to fight on a professional level, as it cuts into her time with her kids, or would sharing the benefits of such a career ultimately make it all worth it? How much of yourself do you give up for your kids, and is it really in their best interest to do so? Without firm answers, these are the questions that the movie probed.