You're not going to get the original film quality to DVD, since film and digital video are different formats. They are, literally, qualitatively different. They're quantitatively different, too, in the amount of information they contain. You can consider a 35mm film frame to have 3 to 12 million pixels (link), while a DVD frame has exactly 345,600 pixels. Not all of those pixels will be visible or carry image data -- the 1.5:1 frame is squeezed or stretched to the correct display aspect ratio, and the letterboxing on the top and bottom doesn't convey any useful information. Even if you prefer to use that site's number for average lines visible in a theater, that's still almost 60% higher than DVD.

On the other hand, a DVD should be made from a clean print, and you can control the viewing conditions, so the quality of your viewing experience may be better than what it was in the theater. Hard to tell.