Under My Skin is a 1950 American film directed by Jean Negulesco, starring John Garfield and Micheline Presle. It is based on the short story "My Old Man", by Ernest Hemingway, about a jockey being threatened by a mobster after winning a race he had agreed to throw. The Hemingway story was later adapted for a 1979 CBS television movie, My Old Man, starring Kristy McNichol, Warren Oates, and Eileen Brennan.

Under the Skin is a 1997 drama film written and directed by Carine Adler starring Samantha Morton. It tells the story of two sisters coping with the death of their mother. One sister, Rose, who is married and pregnant, manages to get on with her life. Iris feels suffocated in her current relationship and her life spirals out of control once she leaves her boyfriend, Gary.

Under the Skin is a 2013 science fiction thriller art film directed by Jonathan Glazer, and written by Glazer and Walter Campbell as a loose adaptation of Michel Faber's 2000 novel of the same name. The film stars Scarlett Johansson as an alien seductress who preys on men in Scotland. Under the Skin was released in the UK on 14 March 2014 and the US on 4 April, and received generally positive reviews.

Under the Same Skin is a 1962 Argentine drama film directed by Daniel Tinayre. It was entered into the 12th Berlin International Film Festival.