Complex sentence: After Hitchcock popularized the effect (he used it again for a climactic revelation in "Marnie"), the technique was used by many other filmmakers, and eventually became regarded as a gimmick or cliché.
Split into simpler sentences: After Hitchcock popularized the effect (he used it again for a climactic revelation in "Marnie"). The technique was used by many other filmmakers and eventually became regarded as a gimmick or cliché.