There is another adaptation of The Machine Stops here:
http://www.youtube.com/watch?v=fRIlegVJIoQ
Don't confuse this one with the excellent Out of the Unknown production. This one is stylish and beautiful to look at, but the story cannot be properly told in 9 minutes and 34 seconds, and the result is that much of the story is sacrificed for style. A prison is introduced, as well as some dialogue about the Machine
crying. Neither of those elements were in the novelette.