MIB 3 has just released 3 teaser clips as a way to drum up interest for the the Will Smith/ Josh Brolin/Tommy Lee Jones action comedy vehicle. Instead of a series of fast cuts taken from different parts, the clips feature entire scenes that highlight the movie's action and witty dialogue.
The first one has J and K going all out on a Chinese restaurant, the second has the duo (featuring a now younger K) on futuristic unicycles giving chase to an alien biker. The third one trades action for a short talking scene in which Brolin shows how effective he is at portraying a younger Tommy Lee Jones.
The clips, after the cut: