Mangus! (2011) on Netflix

Mangus Spedgewick, a high school senior in Rivercity, Texas - hopes to fulfill a family tradition by playing the role of Jesus in his local annual production of "Jesus Christ Spectacular" (the poor man's version of "Jesus Christ Superstar")... That is until a freak accident renders him legless. Shuttled off to live with his estranged mother in a trailer park, the senior finds new friendship with a quasi sibling and winds up playing the role after a series of strange events that also reunites his family.