I love Abyss!
Both Pandorum and Dark side of the moon sound good to me. Will watch soon. Pandorum sounds similar to Event Horizon which can only be a good thing
Yes it is similar to Event Horizon, they are cool both movies
Bear in mind that Dark side of the moon is a low budget movie. Do you like those low budget movies?
There is also a movie similar to the Abyss, it is called Deep star six, cool movie too.
And an old horror movie called Death ship, i find quite unique you should see, if you are in too horror, it is similar to Ghost Ship.