Complex sentence: She refuses, and they fight, with Aaron nearly capturing Mallory before the intervention of Scott (Michael Angarano), a young customer in the diner, allows Mallory to break Aaron's arm and escape with Scott in his car.
Split into simpler sentences: She refuses, and they fight, with Aaron nearly capturing Mallory. But the intervention of Scott (Michael Angarano), a young customer in the diner, allows Mallory to break Aaron's arm and escape with Scott in his car.