heh Primer was wacky but I liked it also
If you'd like to watch good & recent sci-fi than I second what Dinky has said. It's on telly. Try with "Life on Mars" that I think you'll really like
BSG is good also tho some eps are rather boring. I was totally happy with "Razor" but you'll have to watch at least some of the series to appreciate it fully IMO. Some other titles that I liked and also including mini series (I'll try to keep it to less commonly known titles):
5ive days to Midnight (mini series)
American Astronaut, The (wacky B&W sci-fi musical)
Banlieue 13 (French gangsta' dudes on speed)
Cube Zero (the best of "Cube")
Five People You Meet in Heaven, The (slow building fantasy)
G.O.R.A (wacky Turkish sci-fi spoof)
Incident at Loch Ness (Herzog's non-sci-fi non-alien abductees non-sense)
Invasion (series) (showed promise got canceled with stupid "ending")
Jacket, The (OK, this one is not that uncommon title in average Joe's DVD collection but it's good)
Jericho (series) (PA, starts off slow but gets much better)
Kovak Box, The (quite good sci-fi/mystery/thriller)
Lost Room, The (mini)
Lost Skeleton of Cadavra, The ("Dark Star" quality in a new B&W B-movie fav... it's a laugh)
One Point O (a strange bird but I liked it)
ReGenesis (series) (this is why you shouldn't skip chemistry & biology classes)
Not much of a list but I bet you haven't seen them all