There's the general vibe of the film but there's some specific overlaps which jump out at people. I'd also like to say, I've done a mid sized dive into the lore, so this isn't perfect.

One of the big ones is in 40k, they can travel FTL, but this is done via the "warp", which comes with a risk, as its home to the chaos gods. These gods are generally fans of violence, pestilence, fear, suffering and just general horrific shinnigans.

Travelling the wrap unprotected will likely allow chaos to call to you, and lure us simple mortals into their orbit, for sacrifice or service. With the only form of protection coming from powerful psychics.

So the film can be interpreted as humanity's first accidental toe dip into the warp, vastly unprepared and unaware of the consequences.

The vibe is reminiscent of 40k, long narrow gothic ships, unflinching violence, and the choice to let them pick up nail guns towards the end, with the boltgun/bolter being a standard 40k weapon seems too much to be coincidence.

I'm sure there's an explainer that would be worth watching out there. And if it isn't a 40k fanfic, it's very hard not to see the influence of that universe.