Sorry guys this one is late but because of time restraints and wanting to do a good job on this it took a couple of months to complete.
Below is a list of confirmed Sci Fi , Fantasy, and Horror films that will be in theaters in 2011. The list is based on facts and details that I could find on the net. Most plot summaries are taking from press releases ,wikipedia (which I come to find they mostly rely on press releases) and varius sites like Ibdm and Bloody Disgusting .
I also took the liberty to add most of the computer animated movies and took some liberties on non Sci FI /fantasy type films which had some elements of the genre mixed into the plot.
If there is any changes in schedules I will try to update the best I can. There are also other films yet to get a release date that may sneak in the list . For example District 10, Dark Shadows (with Johnny Depp), 28 Months Later , Bio Shock, and Conan to name a few.