I actually thought the remake was quite disappointing. Roger Ebert is one critic who gave it a pass surprisingly. I still say Biel is hotter than Beckinsale, but I guess that's just a side not
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My problem with the movie is that it really feels rushed. The story is very rushed, with way too much action, like they couldn't wait to get to the next battle scene it feels like. The whole thing also just looks very overshot, and over edited.
Also, unless I missed something, there is a huge plot hole in this one compared to the original.
SPOILER
In this one, they remove that there are no psychics in the movie, trying to read the villains' minds to see what they are going to do next. In the original, they blank Quaid's mind to fool the psychics. But since there is no psychics in this one, why did they blank Quaid's mind for? Does it make sense, and I missed something?
I also didn't like how they tried to redo certain touches, such as the three breasted woman, when they could have just tried to make a more original remake instead, if that makes sense, without having to have such nods.
But those are my reasons why I found it quite disappointing to the original. However, I didn't really mind that Mars was omitted and didn't think that the setting mattered, as long as it was a dictatorship setting. Does it matter if the dictatorship setting is Mars, compared to a country on Earth?