The Devil Within Her  (1975)

Theatrical Release Information:
The Devil Within Her

This weird British hybrid of The Exorcist, Rosemary's Baby and It's Alive! stars Joan Collins as a stripper who spurns the advances of a lecherous dwarf and is subsequently cursed by a monstrous baby -- which emits horrifying demonic howls and attacks everyone within reach, including his parents, his nanny and the family doctor (Donald Pleasence). A final exorcism is attempted by a nun (Eileen Atkins), for what it's worth. No clear explanation is given for the link between the spurned dwarf and the demonic influence placed upon the homicidal tyke (even the countless Italian Exorcist knock-offs usually maintained some sort of twisted logic), and the considerable potential for horror in the killer-baby concept is not explored thoroughly enough to keep viewers involved. Also released as I Don't Want To Be Born. ~ Cavett Binion, All Movie Guide