The first Deus Ex - Human Revolution Trailer that I saw sent shivers up my spine. The subsequent trailers however, had more and more action and somehow became less and less effective.
Deus Ex - Human Revolution E3 2010 Trailer (3:16)
The second Deus Ex - Human Revolution Trailer that I saw.
Deus Ex - Human Revolution Cinematic Trailer (5:12)
"It's not the end of the world. But you can see it from here." Get's me every time.
Deus Ex - Human Revolution E3 2011 - Vengeance Trailer (2:16)
There's a particular sequence at 1:08 in an office fire fight where the main character does some amazing footwork to get around a desk and into cover that I really like.