I've seen the following 2009 movies so far:
Watchmen - This is based on a graphic novel I had naturally never heard of, since I have no interest in those things. However, the superhero antagonist (or protagonist, depending on the POV) is the most powerful I'm aware of, as he, Dr. Manhattan, can control the electromagnetic force.
X-Men Origins: Wolverine - This movie partly explains the origins of Wolverine. I mention 'partly' because the actual mutation is not explained. Actually, there are two mutations. Wolverine has the extending claws and accelerated healing abilities, like an advanced amphibian. A possible explanation for the healing abilities can come about through pluripotent, or stem, cells. Amphibians revert the cells in a damaged area to stem cells.
Star Trek - One can think of this in similar terms to X-Men Origins, since it focuses on the incipient days of our familiar friends in Starfleet. My only complaint was the lack of explanation for the red matter.
The Uninvited - This is a remake of the Korean movie, A Tale of Two Sisters:
Both the Uninvited and A Tale of Two Sisters are exceptional horror films, but I feel the Korean original is superior.
Transformers 2: Revenge of the Fallen - Goodness, this was a load of crap. The computer graphics were amazing, but the story left me annoyed. Even the original cartoon from 1984 provided one with more cerebral material.
District 9 - Wow! Finally! Something to blow my ass away! I loved the hyperviolence, along with the original story. I liked the way the origin of the aliens was not explained, leaving the viewer to speculate.
Pandorum - I would not want to be stuck on The Elysium, the spaceship. While this movie hasn't given me a nightmare yet, it has given me numerous uncomfortable thoughts. Based on sheer terror, Pandorum ranks right with Alien. While people are calling the ending a 'shocker', I feel other parts of the story were more shocking. This is also similar to Event Horizon, Sphere, The Descent, and Sunshine. Except Pandorum is more terrifying and more realistic. In other words, the events that transpire in Pandorum are more likely to actually happen than the events in the other movies I mentioned. This movie is not 'far-fetched', and that's what adds to the terror.