Move trailers in the 21st century tend to follow a pattern, a formula if you will, and over time began to all look alike. AD_edits did a nice job on The Empire Strikes back, with a trailer that will make you want to see the movie again. But what if you'd never seen it before? What makes the "modern trailer" above so noteworthy is the contrast between it and the real 1979 trailer.
The production values and the use of a narrator make it seem hopelessly dated, but this one honestly gives fewer plot points away. It worked 40 years ago. (via Geekologie)