The Lady from Shanghai

Considered a masterpiece by many, Orson Welles’s twisty film noir is certainly iconic—the "hall of mirrors sequence" alone makes this an all-timer. But the script is a mess, Welles’s Irish accent is unforgivably comical, and the overly complicated plot gets bogged down in long dialogue scenes that rob it of suspense and energy. The inspired staging of certain set pieces is almost thrilling enough to compensate for these flaws, but it's like a sub-par Busby Berkeley musical where the production numbers are more enjoyable when watched on their own, outside the context of the movie, which is a grave sin in my book.