check out this article
http://www.movies.com/movie-news/4d-movie-theater/8663?wssac=164&wssaffid=news&_r=true (http://www.movies.com/movie-news/4d-movie-theater/8663?wssac=164&wssaffid=news&_r=true)
4D movie theaters would be awesome, hit with water and moving chairs, wind, air, etc, these would be so awesome
LA Times article - http://www.latimes.com/entertainment/envelope/cotown/la-et-ct-4d-cinema-20120707,0,642655.story (http://www.latimes.com/entertainment/envelope/cotown/la-et-ct-4d-cinema-20120707,0,642655.story)
btw - I would for sure pay the extra money to watch a 4D film, I think it would be so awesome