Under the Frozen Falls is a 1948 British children's film directed by Darrell Catling and starring Harold Warrender, Jacques Brown and Ray Jackson. The original screenplay was written by Mary Cathcart Borer as a film for children. It was later adapted as a book by J. H. Martin Cross. The film was one of the four of David Rawnsley's films that used his "independent frame" technique, a form of back projection.