<Tr> <Th_colspan="2"> Games </Th> </Tr> <Tr> <Th> Video game (s) </Th> <Td> Halloween (1983) </Td> </Tr> <P> Halloween is an American horror franchise that consists of ten films, novels, comic books, merchandise, and a video game . The franchise primarily focuses on serial killer Michael Myers who was committed to a sanitarium as a child for the murder of his older sister, Judith Myers . Fifteen years later, he escapes to stalk and kill the people of the fictional town of Haddonfield, Illinois while being chased by his former psychiatrist, Dr. Sam Loomis . Michael's killings occur on the holiday of Halloween, on which all of the films primarily take place . </P> <P> The original Halloween, released in 1978, was written by John Carpenter and Debra Hill, and directed by Carpenter . The film is known to have inspired a long line of slasher films . </P>

How many parts of halloween movies are there