What are they?

No matter they are English speaking movies or not

Different films for different things I guess. Coarse language? Pulp Fiction. Sex? Nymphomaniac. Violence/gore? The Hostel Series.

I did some research and came across a film called "9 Songs" once. Everything in it is unsimulated and they show everything. It was terrible... but interesting.

the wrong turn series

Caligula to be honest. The pioneer

Also "Impaledestricted"

Saw 1 - 7.

What about that film which is called A Serbian Film

Those couple had real sex in the movie

Is that the one where a father is paid to do a bunch of sick acts? And ultimately, in the end, he and the other guy end up unknowningly raping his wife and five year old son?

What do you mean by sick acts?

I thought it had death in it.

let me pray for everyone in this thread

Yes

The Director's Cuts for Nymphomaniac Vol. 1 and 2.

That was so disturbing. The scene when he's having sex with that woman doggy style than chops her head off with a machete