If you haven't seen Get Out you may not want to keep reading.
In Get Out we were treated to an ending in which Chris has taken out all of Rose's family, left her for dead, and suddenly in the middle of the road a cop car pulls up. When the door opens its revealed to be Chris's friend Rod.
No apparently the original ending in the script was much different. Jordan Peele, the writer/director was on the Buzzfeed Podcast and had this to say.
There is an alternate ending in which the cops actually come at the end. He gets locked up and taken away for slaughtering an entire family of white people and you know he’s never getting out, if he doesn’t get shot there on the spot.
In the beginning when I was first making this movie the idea was, ‘OK, we’re in this post-racial world, apparently.’ That was the whole idea. People were saying, ‘We’ve got Obama so racism is over, let’s not talk about it.’ That’s what the movie was meant to address. Like look, you recognize this interaction. These are all clues, if you don’t already know, that racism isn’t over. So the ending in that era was meant to say, look, ‘You think race isn’t an issue? Well at the end, we all know this is how this movie would end right here.’
Pretty messed up, but turns out it was not filmed so don't expect to see it on the Blu-ray