Red shirt? Naw, man - She's too cute to die! And that borg telling the dude that "Resistance is futile"? Subtle. Real subtle.
After you ask her to marry you, ask this question next: "So, Star Trek or Star Wars wedding?" If she said yes to either, then she's a keeper!
Miss C wrote a really neat article for mental_floss about science fiction wedding: Link
Their wedding was not exactly themed, but he did convince her to use the Star Wars award ceremony processional as their wedding recessional.
Him: awww man this is awesome my fantasy lived out
her: He's lucky he's so freaking rich.
Maybe I'm taking this too far... U_U
Ah well. I know a couple who had a giant Renaissance themed wedding at an old castle where everyone dressed up and they had a big banquet at the end with roast venison... that would be quite cool too I think ^_^