Complex sentence: Hackford met Mirren when he was directing her in "White Nights", although their first meeting did not go well: he kept her waiting to audition for "White Nights", and she was icy.
Split into simpler sentences: Hackford met Mirren when he was directing her in "White Nights" although their first meeting did not go well. He kept her waiting to audition for "White Nights", and she was icy.