There are a lot of 3D process types, good, bad, very bad. Simply try it - a pair of glasses costs depending on the version € 0.50 to € 2.50, the cardboard stuff rarely more than 1 € or 1.5 €.
Beat the Zalman 22 "3D monitor for € 170 with 2 smart polarization glasses, and the Stereoscopic Player
- Glasses & players alone you get for € 65, so stay for the 22" TFT monitor and four cables 100 €!
You can look at 3D images with polarized glasses in such an interlaced monitor (which otherwise costs per the size 800-8.000 €). On a normal monitor with prism glasses, either the two stereoscopic images side by side or stacked. The latter method is more convenient, better. The prism glasses projecting the right image in the right eye - the 3D effect comes!
What has been said for images / photos, of course, also applies to film / video.
5x 2 left/right pictures with GH1/14-140, original size 4352x2448, 45 MB you find there: