Sundance Selects has acquired North American rights to Nick Ryan’s documentary “The Summit,” which had its world premiere Friday, Jan. 18, at the Sundance Film Festival. The film digs in to what happened when 24 climbers attempted to summit K2, widely considered the most dangerous mountain on Earth, and only 13 returned. A sister division of IFC Films, Sundance Selects picked up “Ai Weiwei: Never Sorry” and Oscar-nominated “How to Survive a Plague” at the 2012 festival. Submarine Entertainment’s Josh Braun repped the sale for the filmmakers.