According to "Film 4", of the movie's naked group shower sequence, "(Dame Julie) Walters is said to have demanded the rest of the crew got their kit off while filming it."
Several of the female cast, including Dame Julie Walters, are seen in almost total full-frontal nudity in this movie. According to "Film 4", "the film is probably best remembered now for its self-consciously unselfconscious nude shower scene."
This was the first cinema movie in which Dame Julie Walters was seen after Educating Rita (1983), where Walters had been Oscar nominated for Best Actress in a Leading Role, her only Academy Award nomination until Billy Elliot (2000).
The place where the all-female survival course took place was England's Lake District.