The document discusses how the filmmakers combined conventions from film noir and crime thriller genres in their opening film sequence. They incorporated elements like the strong femme fatale character and sophisticated costumes from film noir films. They also drew from crime thriller conventions like modern detective investigations and the use of lighting, sound, and camerawork to distinguish good and bad characters. The filmmakers challenged some conventions like relying less on dialogue and more on visual storytelling. They developed new elements like showing the femme fatale character seducing men to kill them, and used editing techniques like a "ghostlike effect" during a murder scene.