I liked the idea of Screamers, how the robots started self replicating and took over. Also liked Total Recall, I was never sure if the whole second part of the movie was real or in his head.
The short story "We Can Remember It For You Wholesale", on which Total Recall is based, is a fun read - it's not quite the same as the movie.
https://en.m.wikipedia.org/wiki/We_Can_Remember_It_for_You_W...