I don't know if you ever saw A Scanner Darkly, but that was based on a novel written by Philip K. Dick, who also wrote a short story that was the basis for Total Recall. Normally I don't read science fiction but his books are usually great. A friend of mine saw TR and liked it, but I didn't ask her why or get her to elaborate much.

I wish people would stop making sequels to everything. Like there being four Pirates of the Caribbean movies--people need to learn to quit when they're ahead.