

Tony and Tia are other-worldly twins endowed with telekinesis. When their Uncle Bene drops them off in Los Angeles for an earthbound vacation, a display of their supernatural skill catches the eye of the nefarious Dr. Gannon and his partner in crime, Letha, who see rich possibilities in harnessing the children's gifts. They kidnap Tony, and Tia gives chase only to find Gannon is using her brother's powers against her.
Acting
Christopher Lee plays evil scientist with Shakespearean gravity.
Practical Effects
Pre-CGI telekinesis via wires and pure 70s ingenuity.
Costume
Bette Davis's villain wardrobe is camp perfection.

Director
John Hough
Trivia, insights & behind the scenes
This was Bette Davis's only Disney film—she reportedly took it for the paycheck but ate every scene anyway.
The film captures peak 70s paranoid energy: evil corporations, psychic kids, and distrust of scientific authority.