http://d.yimg.com/a/p/ap/20100422/ca...W_J4YSyrvN0w--AP - For movie goers, watching a 3-D film is a relatively easy experience. Audiences didn't need to do anything other than pay a few extra bucks and slip on a pair of special glasses to see 3-D versions of "Avatar" or "Alice in Wonderland." For gamers, however, enjoying a 3-D game requires a bigger investment on their part.
Source
