By: Addison Wylie The Trick with the Gun has a lighthearted voice, but the film shouldn’t be discounted.  Michael McNamara’s documentary is one of the most enjoyable and exhilarating films I’ve seen this year.  Though the film is easy for us in the audience, the same can’t be said for the film’s subjects who face a deadly task. Scott Hammel is a valiant magician whose illusions and motivational speaking have helped inspire young audiences.  He…