Overview
The Bubble is a 1966 American 3-D science fiction film in color, later re-released under the title Fantastic Invasion of Planet Earth. It was written and directed by Arch Oboler and starred Michael Cole and Deborah Walley.
Plot
Tony is flying Catherine, who is in labor, and her husband Mark to a local city when a storm forces their small aircraft to land near a small town. Catherine is rushed to a local doctor, who delivers her baby successfully. The town is an odd amalgamation of architectural styles and technology levels, and the people act drugged. There is no wind or rain. Tony's plane goes missing.
Mark and Tony discover a throne-like seat in a building. When Tony sits in the seat, he becomes like the townspeople. Mark locates Tony after some time and knocks him out. When Tony awakes, he's back to his old self.
When the outsiders try to leave, they discover the town is encased in a gigantic clear dome. Mark hypothesizes that aliens are studying the townspeople, and sitting in the rock seat keeps the townspeople alive (as no food is getting in). A massive shadow passes over the town, and a woman and her child are pulled into the air. Hysterical, Catherine hides with her baby in an old mill on the edge of town.
From Wikipedia (CC BY-SA 4.0).