A Sound of Thunder (2005)

David Oyelowo: Marcus Payne

Quotes 

• Ted Eckles : My gun doesn't work.

  Payne : Believe it or not, that's a safety feature. They're all tied to Travis' gun. It won't fire until he fires first.

  Ted Eckles : Why the hell not?

  Clay Derris : To keep clients from shooting things they shouldn't.

  Payne : Hey, Derris, how about we don't mention this in our report.

  Clay Derris : No harm, no foul.

  Payne : Appreciate it. You know, I'm not really that big of a dick. I just to like to talk.

• Travis Ryer : We cannot have accidents.

  Payne : While I was a physics major in college, we studied something called the Heisenberg uncertainty principle. It proves that there is no such thing as zero tolerance. It doesn't exist. You basically can't be 100% sure of anything no matter how hard you try. Accidents... happen.

  Travis Ryer : We can't have accidents.