Genres change over time due to several factors: Target audiences for films have become younger leading to more teenage characters and relatable stories. Audiences are also more familiar with genre conventions which raises expectations. Censorship standards have relaxed significantly since the 1960s, allowing for more graphic content. Individual influential texts, stars, and directors can redefine genres or spark renewed popularity. For example, Hitchcock's suspense films still influence modern thrillers. Advances in technology like stabilized cameras, digital editing, and special effects have impacted genres by allowing new types of shots and more realistic graphic content.