The women of Hollywood have been loving styles with deep, dramatic side parts, and they proved it this week. Side-swept styles were kept slicked against the scalp on one side, while the other hung loose. Jessica Stam paired her vintage take on the side part with a deep red lip and waves, while Penélope Cruz opted for stick-straight strands. And Jessica Chastain added some flirtation to her part with a sweet, bouncy curl. Parts continue to fly south for the Winter, but who wore the look best?