help me solve this mystery

[quiltfanatic]

 :buggedout:looking for a movie that was made in the 70's about a couple that lived in a futuristic cummunity, where they were only allowed to have one child. Well that one child died and they wanted to have another one, but the government would not let them have another one, kinda like china's only child. please help me solve this mystery, it has been bugging my memory for a long time. quiltfanatic

[JJ80]

Possibly Z.P.G

http://www.imdb.com/title/tt0069530/

[Trevor]

I agree with JJ80. 

[hhglnd]

How about Fortress with Christopher "The best ever accent" Lambert?