Lawrence George Cohen (July 15, 1936 – March 23, 2019) was an American filmmaker. He originally emerged as the writer of blaxploitation films such as Black Caesar and Hell Up in Harlem (both 1973), before becoming known as an author of horror and science fiction films — often containing police procedural and satirical elements — during the 1970s and 1980s. His directorial works include It's Alive (1974) and its sequels, God Told Me To (1976), The Stuff (1985) and A Return to Salem's Lot (1987). .
https://en.wikipedia.org/wiki/Larry_Cohen