Complex sentence: In spite of its selection to the prestigious festival, the film gained notoriety as being the lowest-grossing US theatrical release of 2015; it generated only US $74 from its one-week, one-theater theatrical run.
Split into simpler sentences: In spite of its selection to the prestigious festival, the films gains notoriety as being the lowest grossing US theatrical release of 2015. It generated only US $74 from its one-week, one theater theatrical run.