Three stars. Rated R. 119 minutes. The most indelible image from the 2013 Boston Marathon bombing was the photo of Jeff Bauman in a wheelchair. Having lost both legs, he sat clutching his left thigh as a trio of people whisked him toward an ambulance. His story — how he ended up at the race and how he fared afterward — comes to the screen in the raw and moving “Stronger,” based on Bauman’s memoir. Related ArticlesSeptember 22, 2017 Movie review: Mild Facebook anxiety becomes a supernatural nightmare in “Friend Request” September 22, 2017 Movie review: “Kingsman” sequel lacks punch and vibe of first film September 22, 2017 Move review: This Lego movie doesn’t really fit in September 22, 2017 Movie review: “Brad’s Status” examines a father with plenty of baggage September 20, 2017 At 82, Judi Dench’s mission remains the same: “To learn” Jake Gyllenhaal, as always, disappears into the lead role, which is no small job.