
That's 3-D as in Stereoscopic film, like with the red-blue or polarized glasses (as used at the IMAX, in Real D and Disney Digital 3-D theatres), not 3D CGI as in Toy Story, Finding Nemo and Shrek. Although you can release a 3D CGI film as a stereoscopic 3-D movie as well, like done with The Polar Express, Monter House, Open Season and the planned Monsters & Aliens and Shrek 4.
I know, it's confusing, but just remember: when it says 3-D it means 3-Dimensional and when it says 3D it's CGI computer animation. Stereo 3-D and Stereoscopic 3-D mean the same thing and they have nothing to do with your HIFI stereo or your Dolby Surround set.