The Omen (20th Century Fox - 1976)

An ambassador is talked into switching his wife's stillborn baby with an orphaned infant. When young Damien is five, the horror begins with his nanny's dramatic suicide. As the death toll escalates, Damien's father, realizing his son is the antichrist, decides that he must kill the boy and rid the world of the evil.

Directed by Richard Donner.
Starring Gregory Peck, Lee Remick, David Warner, Billie Whitelaw, Harvey Stephens, and Leo McKern.
Rated R.