Nightmare Beach (1988)
Nightmare Beach, released in the United States as Welcome to Spring Break, is an Italian-American slasher film released in 1988 co-directed by Harry Kirkpatrick and (uncredited) Umberto Lenzi, and starring Nicolas de Toth, Sarah Buxton, John Saxon, and Michael Parks. Umberto Lenzi had a falling out with the producer just as production started and wanted to be taken off the film, but Harry Kirkpatrick (who wound up receiving sole directing credit) convinced Lenzi to remain on the set in an uncredited advisory capacity throughout the entire production. For years, many horror film fans thought Harry Kirkpatrick was an alias for Lenzi, but Lenzi has stated in interviews that there really was a Harry Kirkpatrick who wrote & co-directed that film.
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