I remember watching a film on TV in the UK. It would have been in late 80s to early 90s, and I expect it to have been made in the same period of time.
It was a live action sci-fi film, in colour and English, set either on a space station, or a base underwater. It had a very dark atmosphere, almost like Aliens, as the films were around at the same time I would guess it may have been trying to copy Aliens a bit. Something happens on the space station / base and the people there are either being killed by something or each other.
The only scene that sticks in my mind with any strength is this:
At some point one of the people in the base attempts to escape. He makes it to an escape pod, straps himself in and ejects. However he missed out a step and didn't pressurise the pod correctly, as the pod is escaping you see blood starting to escape from his skin and he is trying to hold it in. I assume he dies.
I dont know if this was at the end of the film or part way through.
I know it isn't Event Horizon nor is it The Abyss.