Stream the full I Think My Babysitter's an Alien movie online for free in crystal-clear HD quality. No downloads required—just press play and enjoy the action, complete with English subtitles for an enhanced viewing experience.
When a world-famous astronaut returns home from his latest mission, he brings a unique souvenir to his wife and two children: a piece of an asteroid that hit his space station. But soon, strange things start to happen and nine-year-old Katie becomes convinced that aliens have moved in.