I saw only a couple of minutes. Apparently a disaster sent eveyone underground. They created a genetic workforce that sort of look like Frankenstein. The ground above (desert) is ruled by mutants. I seem to remember something about sterility being an issue.
Long shot, but could it be The Time Travelers from 1964? The movie is about some time travelers from the 20th century who travel through a time portal they've developed into the year 2071, and in this future an advanced civilization was living underground with barbarian mutants on the surface, and the underground dwellers had built androids to be their servants. The complete movie is on youtube below, you can see some shots of the mutants if you skip to 14:40 or so, and a shot of some androids at 19:20, and at 22:20 one of the underground dwellers explains the history of how the world got that way: