A ninety-minute avant garde documentary about George Best, set to live music and performed in an art deco cinema, might sound like something from the 1970s alternative arts scene, particularly when only one of the footballing superstar’s goals is featured.  But this is Belfast in 2016 and the catalyst for this future-retro Best tribute is Dublin composer/musician Matthew Nolan, who specializes in putting music to silent/avant-garde films. The film in question is “Football Like Never Before”, shot by German film-maker Helmuth Costard in 1970 and released the following year. Eight 16mm cameras tracked Best for the full ninety minutes of…