I take no credit for this whatsoever because someone showed me this a couple weeks ago, but it’s unbelievably awesome. You get to watch it the same way I did, by watching the real “Unstoppable” trailer first (incredibly funny on its own…unintentionally, of course), and then watching the SNL skit. Trust me it’s much funnier this way:
Saturday Night Live “Unstoppable” Trailer
[thanks Sty]