Since I first watched Event Horizon I always thought if it as humanity's first encounter with the warp without a gellar field.

Remember kidds! Never go warp without gellar field activated!

I personally like to imagine the following conversation after the events of Event Horizon:

Government employee: "You want to build a second Event Horizon class ship? Are you insane?"

Scientist: "I can see why you think that, but one of our top dimensional theoreticians has examined the data, and he believes he can build some kind of energy field to mitigate the effects of the other dimension."

Government employee: "Really? Who is this genius?"

Scientist: "Dr. Gellar. He's currently working at the University of Olympus Mons on the Mars colony..."

I watched this in the early 2000s on VHS.  The minute I saw the black hole engine, being an avid 40k gamer, I said "That's a Chaos Gate".

Even the engine room looks like an imperial ship engine.

Pual w.s. Anderson said that the inspiration for this movie was from warhammer 40k he loved how the chaos marines looked

I didn't know anything about 40k but a friend was a huge fan. When I asked him to explain it to me, he said, "Ummm... have you seen 'Event Horizon'?" When I told him I had, he said, "Cool, then this is going to make a lot of sense." I don't think it was ever intended to be tied to 40k, but it sure is useful as a frame of reference! Now I really dig 40k games and Event Horizon is one of my reference points, too.

The Event Horizon crew just forgot to activate the ship's Gellar field.

It may not be officially but I've pretty much accepted it as a 40k prequel. 40k isn't just sci-fi.  There are strong elements of horror and fantasy in it as well.  What happens in Event Horizon is basically what happens when a ship goes into the warp without the Gellar field as the video states.

I can't imagine a spaceship film without laurence fishburne in it. He was also in Passengers as Captain, similar to the Matrix as Captain of the Nebuchadnezzar.

With regards to movies that are secretly about 40k

Event Horizon is about the Warp

Species is about Genestealers

Starship Troopers is about Tyranids

Slither is about a Nurgle inversion

The Void is about a Chaos Cult

Hellraiser is all Slaanesh

And in a little known movie called "The Man From Earth" we see The Emperor in his human guise before he took power.

Event Horizon was originally supposed to be a Hellraiser movie and th drive a Lament Configuration. The similarities between the two drive systems is a fascinating coincidence.

This movie creeped me out. The part when they reviewed the logs, especially. Then I freeze framed things so could see more than flashes of what was happening. And wished I hadn't.

An arm diwn someone's throat was the least of it.😅

I only ever wrote on fan fiction as a kid. That fan fiction was an Event Horizon fan fiction. One of my favorite movies.

Damn, now I need to watch it again ~

I first saw ‘Event Horizon’ in the theater with my friends and it’s remained one of my most favorite movies ever since. I never thought of it as being even remotely connected to 40K, but it’s definitely fun to think about.

I would like to mention that the ring entities also known as the "dark gods" in the expanse may also be manifestations of the warp. And thus connecting Event Horizon, The Expanse and Warhammer 40k.

This movie scared my ass off!!!!!

Slanesh had yet to be born in the time peroid Event Horizon was set in.

I like to like to link movies and genres. This is a good one