Fiction can evoke a wide range of emotions in viewers, from anger to sadness, but what if it is based on true stories? Especially when a film is inspired by real-life incidents involving the most precious relationship in the world. We're talking about the bond between a human being and a dog. Megan Leavey is one such film, based on a true story, that depicts the heartwarming story of a young female Marine and her military dog, Rex.