not sure if this was covered in conversation,
http://www.cnn.com/2010/SHOWBIZ/Movi...ues/index.html
Audiences experience 'Avatar' blues - CNN.com
www.cnn.com
James Cameron's completely immersive spectacle "Avatar" may have been a little too real for some fans who say they have experienced depression and suicidal thoughts after seeing the film because they long to enjoy the beauty of the alien world Pandora.