An unexpected controversy arose over music in the new Shaft movie, starring Samuel L. Jackson, Richard Roundtree and Jessie T. Usher as three generations of the Shaft family. Isaac Hayes III, son of the Oscar- and Grammy-winning soul-music icon, hoped to produce the new film’s soundtrack; but that didn’t happen, and the New Line film contains newly recorded versions of the classic theme but no actual tracks by the composer (who died in 2008). I interviewed both the heir, composer Christopher Lennertz (who scored the new film) and sources close to the studio for this Variety story.