Amnesiac: If this movie begins playing on a screen in front of you, for the love of God, save yourself. It's a badly written, directed, and acted rip off of Stephen King's Misery. At first you think the movie may be salvageable, probably deserves more than the two, to two and a half stars it was given...until you watch it.
The acting by the stories main protagonist (Kate Bosworth) is dull to say the least. It's almost as if Bosworth tried so hard, her performance goes full circle, right back to mediocre. There's a calm demeanor in the character that you as the viewer are supposed to find intriguing, but again, it's far too over done to be anything short of annoying. She is a walking encyclopedia of Jeapordy answers. Which, is supposed to add to the mystery of the character and the plot, but in the end falls flat, because the plot fails to explain why. The general pace is so slow, the plot is so needlessly drawn out, that it begins to feel like more of a nuisance to sit through to the finish, rather than a thrill-ride.
There is a slight twist at the end of the movie, but it's not enough to carry the film above the two star rating.
I have nothing against Kate Bosworth, personally. But, if she ever decides to do another role like this, she needs desperately to seek acting lessons from Kathy Bates.