Being on the edge of your seat could literally mean, “on the edge of your seat “as the Portage 16 IMAX is the first theater in Indiana to feature D-Box MFX seats.  According to the the manufacturer's website the seats will move you gently forward, and backward, from side to side and up and down" following the motion of each frame of the movie.  The site also says, motion is combined with intelligent vibrations to create the most amazing entertainment experience ever.”  According to http://www.nwitimes.com over two dozen of the D-Box seats were installed in July and are an extra eight dollars to sit in.  The article says the seats can be reserved online which is an advantage because theater manager Kevin Morgan says, “you can walk in just before the show starts and know where you're sitting."