While movies made as early as 1932 had aspects of slasher movies in them, the genre was not really defined until the late 1970s. The 1974 movie "Black Christmas" is considered the first slasher movie.. "Halloween" (1978), "Friday the 13th" (1980) and "Scream" (1996) did very well at the box office and showed that slasher movies could make lots of money.