German Expressionism was an artistic movement of the 1920s that focused on emotional distortions in filmmaking. Films like Nosferatu used low key lighting and shadows to convey inner emotions and opened a new era of film noir, known for dark, gritty crime films shot in black and white. Slasher films commonly feature a final girl who survives the killer, a group of friends that are killed one by one fitting various stereotypes, a masked and seemingly unstoppable killer, and locations that invoke common fears like forests, graveyards, or abandoned buildings.