Infinitely Polar Bear is a movie you have never heard of, let alone would actually watch. I took the time to watch this odd movie that is probably Mark Ruffalo’s greatest unknown performance to date. His lifestyle and medical condition is the real heart and soul of this movie about life in the 1970s. You may not fully understand everything that is going on and think that both main characters are complete idiots, but Ruffalo is able to make you see past all the flaws. This was the rare movie that really tries to showcase how tough life can be for people dealing with psychological issues.