2300年未来への旅 (1976)

“Welcome to the 23rd century. The perfect world of total pleasure...there's just one catch.”

In the 23rd century, inhabitants of a domed city freely experience all of life's pleasures — but no one is allowed to live past 30. Citizens can try for a chance at being "renewed" in a civic ceremony on their 30th birthday. Escape is the only other option.