Complex sentence: Flame throwers and trapeze artists performed between musical sets (which explains the "circus" part of the club's name); and during musical sets strobe lights flashed over a huge dance floor, while multiple projectors flashed images and played home movies.
Split into simpler sentences: Flame throwers and trapeze artists performed between musical sets (which explains the "circus" part of the club's name). During musical sets strobe lights flashed over a huge dance floor, combined with a riot of projected images and projected home movies.