The story of wrestler Anthony Robles is an impressive one. Born with one leg, Robles held on to a dream of sporting competition, working his way through high school using his physical strength and mental focus, backed by supportive coaches and teammates. His tale of endurance is turned into “Unstoppable,” a bio-pic of sorts that’s very interested in becoming the latest offering of underdog cinema. Screenwriters Eric Champnella, Alex Harris, and John Hindman are determined to hit all kinds of inspirational moments in the feature (adapting Robles’s own 2012 autobiography), looking to reach out to impressionable viewers with this study of adversity and inner drive. They also craft an overly simplistic endeavor, while director William Goldenberg (a longtime editor making his helming debut) gives the movie plenty of television-style glossiness to aid digestion. “Unstoppable” doesn’t have much grit or originality, missing a hearty sense of triumph and toil, becoming more of a commercial for Anthony Robles than a nuanced study of his indefatigable spirit. Read the rest at Blu-ray.com