I went to see Shutter Island recently. I was intrigued by the trailers I saw, though I wasn't completely sure I wanted to see the movie. I'm glad I ultimately decided to see it. I do think it is a very good movie and it may end up being one of the best movies released in 2010.
The movie is based on the book by Dennis Lehane. I haven't read the book, though I am thinking about it now. I don't know first hand how close the movie stays to the book, but I have heard that it is very close. I know of at least one person that thinks the movie is too much like the book. Even without having read the book, I still thought a few things were a bit predictable and I did figure out something very early. Despite that, I still really enjoyed the movie. I may even pick up the DVD once it is released.
Shutter Island has a very creepy atmosphere and vibe. That comes across in the previews I've seen and I even thought that the movie might be more of a scary movie from the previews. There is suspense to what is going on, but I don't think the movie is scary. The pace is a bit slower, but that allows for enough time to properly introduce the characters and situations while also slowing building the tension. There is some mystery to what is going that helps to make the movie more interesting and entertaining. I think the cast does a wonderful job with the parts, especially Leonardo DiCaprio.
I do think a few things could have been handled a little better, but Shutter Island is very well done and a wonderful movie that is worth seeing.
I did post a longer review of Shutter Island on Epinions. I would have rated the movie 4.5 stars there if I had the option. Since I didn't, I decided to round to 5.