Not entirely sure if this will fit in the 'EU' theme..but..

-Begin Trailer-

Scene: Scene turns from black to slowly reveal a sunset in the desert. Slow drumming background sound plays.

Narrator: "Coming this summer."

The camera pans down to reveal a small campfire. A view of a man from behind him can be seen. He is crouched in front of a campfire, seemingly grinding something against a rock cradled between his legs.

Narrator: "Witness the birth..."

Sound effects of something wooden or chalk-like, grinding against stone.

The man pauses, lifting the item to his mouth. He blows on it, sending out a plume of dust that silhouettes his wavy hair against the campfire. He slowly lifts it above his head, revealing a crude dagger made out of bone.

Narrator: "...of Murder."

Drumming gets louder, accompanied by soft devilish incoherent whispering sound-effects underneath.

Camera swings around to reveal the man's face, who looks at his creation with determination.

All sounds cease, waiting for the man to speak.

Man: "You are not worthy to be my God."

Scene Change: Inside a crude shelter, the man is trying to walk out the exit, but is struggling as a second man tries to hold him back. Slow solemn music begins to play. It gradually gets louder as the scene continues.

Narrator: "A tale of two brothers."

Second man: "Cain, you cannot do this. He is still our God!"

Cain: "He does not love me brother. Did you not see him? Tossing away my sacrifices as if they were shit!"

Second man (Abel): "No, it is only his test! Please, come to your senses!"

Cain manages to loosen himself, grabs Abel by the shoulders and throws him to the ground. He looks at Abel.

Cain: "Then I choose to fail his test!"

Cain swiftly turns around and storms out the exit leaving the flaps to flail heavily about. Abel sits there on the floor, leaning back against one arm looking sad and distraught.

Scene Change: A desert field, Cain and Abel are fighting each other with fists. The music from previous scene continues, with the heavy drum from the first scene joining in.

Narrator: "From the creators of Bourne Identity."

Abel swing his right arm heavily, as Cain spins around ducking beneath the arm, and elbows Abel on his ear.

Scene Change: Cain is shown from the side, walking up stone stairs, his dagger in his hand. At the top is a gate of pearly white.

Narrator: "And The Town."

Cain is at the top, standing inches before the gate. He is looking down at this dagger, placed across both his palms.

Cain: "Tell me."

Music stops again. Camera is in front of Cain. Cain looks up into the camera.

Cain: "Do you bleed?"

Screen turns black with a soft sound of 'stabbing'.

Abel (very softly): "...Cain...".

Cain (voice sounding sinister): "You will."

Very quiet evil laughing sound fades out.

The title appears on the black background as Narrator reads it out.

"The First Murder"

-End Trailer-

I guess Ben Affleck has to play Cain now. And Matt Damon as Abel.