Joan Collins & Donald Pleasence in I Don't Want to be Born (1975)

Obscurity factor: 6

This wacky entry into the demon child sub-genre of horror films is more of an unintentional comedy than a horror film. Life is not easy for Lucy (Collins). She bumps and grinds nightly at a cheap London strip joint. One of her routines involves a dwarf named Hercules (George Claydon), who makes unseemly advances toward her after the show one night. She resists and is rescued by the stage manager (John Steiner) who then proceeds to make love to her. Upon leaving the club she encounters Hercules again and he curses her, telling her that she will give birth to the devil. Flash forward, and Lucy is now married to a wealthy Italian (Ralph Bates). She's pregnant and gives birth to a 12 pound baby boy, who begins to cause trouble immediately, scratching her and drawing blood the first time she holds him. The trail of terror escalates when the couple bring the baby home, eventually leading to murder and mayhem.

MoviePosterShop.com

This film was roundly panned by critics, calling it derivative drivel. It has since found a place in the hearts of people who love campy, over the top, bad horror films and seeing otherwise respected actors in over their heads. Look for Eileen Atkins as the avenging angel, Sister Albana.

Thought it hasn't been released on DVD, you can find it as a streaming title on Netflix and in full on YouTube, thanks to an upload by 70sHorrorRealm. Part one is above.

Obscurity factor: 6 (not on DVD, available on YouTube & Netflix, has developed a cult status)