Best Sci-Fi films on Blu-ray

[manunited1]

So one of my favorite genres to get on Bluray has to be Science Fiction Films. They are just a match made in the space heavens... I would love to know some of your favorites to see if I am missing something I should add to my collection

Some of my owned favorites are as follows...

2001 a Space Odyssey
Alien/ Aliens
Avatar
Blade runner
District 9
The matrix trilogy
Moon
Oblivion
Planet of the apes (original films)
Prometheus *
Riddick series
Star Trek (pretty much all the original cast movies and series)
J.J Star Trek films
Star Wars (all of them + clone wars
Sunshine
THX1138
Tron Legacy

That is my top owned list so far. Would love some suggestions for film or overall picture quality