Hi guys, As I also like this game very much, I present you some Bonus Content missing here. Maybe you are aware of that and maybe not, but here I present you one link I have since 2009:

https://lparchive.org/The-Suffering/

There you can find official Trailer + 4 Bonus movies and some goodies

_>>EnJoY<<_

Since you mentioned the magic phrase: "Bonus Content", you might just as well shout out about the SECRET INTRO! And how to access it!

https://www.youtube.com/watch?v=IZ1ow0Bk9AI

That's a secret and not a bonus content :) But thanks anyway.

It's somehow strange that the documentary of the Eastern State Penitentiary is absent on the PC version. I was hoping that you'll be able to unlock it after completing the game.

It's not absent. And yes, you can access it after beating the game, once. In the secret intro, you have to locate and wear the black fedora... Then the documentary will start.

I did that, it was a developer's commentary about the supposed first level of the game, not the documentary itself.

Ah... You are right. Sorry, i misunderstood.