Fathom Events and Warner Bros.’ DC Studios are blasting off documentary Super/Man: The Christopher Reeve Story , a favorite from Sundance, and Music Box has the festival’s Grand Jury Prize-winner In The Summers among a handful of solid new release including The Featherweight about boxer Willie Pep, and Who’s Afraid Of Nathan Law? a doc following the heroic Hong Kong student activist. DC, HBO Documentary Films and CNN Films acquired Super/Man out of the festival.

It will debut in cinemas across the U.S. on Saturday with an encore presentation Sept.

25, Reeve’s birthday. Reeve’s definitive portrayal of Clark Kent/Superman over four films set the benchmark for the superhero cinematic universes that dominate cinema today. Warner is the home of Superman and the films that shot the unknown actor to stardom before a tragic horseback riding accident left him a quadriplegic dependent on a ventilator to breathe.

Ian Bonhote and Peter Ettedgui directed and co-wrote Super/Man with Otto Burnham, focusing on how Reeve found strength and purpose through disability activism. See Deadline’s Sundance Studio . Music Box Films opens Alessandra Lacorazza’s In The Summers — winner of the Sundance Grand Jury Prize and the Sundance Director Award — at the IFC Center in New York and LA’s Laemmle Royal.

The emotional semi-autobiographical story follows siblings Violeta and Eva, who live with their mother but travel to New Mexico every summer to spend time with their loving but unpr.