The name of the film comes from when Adam (Joseph Gordon-Levitt) finds out his odds of survival are 50/50 after finding out he has spinal cancer. The film was written by Will Reiser, who was actually diagnosed with spinal cancer in real life, which is what undoubtedly helped it feel so genuine. The focus of the film is to show how cancer can affect more than just the person with it but also the people around them. It does that surprisingly well.
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