I saw it (S. Darko) once, but can't remember any of it. I watched Donnie Darko again recently. I didn't realize that was his real sister playing in it, and as well she played with him in Source Code.
I caught it (D.D.) pretty late, in 2006, with my ex. It was the last movie we watched together, the last weekend we were together, which made it have some kind of special effect.
I'm not stuck on her... don't take this wrong. I'm glad we ended (though, perhaps not how, and how much). But after her relationships have been non-existent. Life changed. I "died", like I had died before (but differently). Yep. Uh-huh. Then Richard Kelly as director popped out to me, because Richard Kelly was my best friend growing up.
The emotion of the movie, and themes, and music, coupled with the emotions that I went through during/after the break-up, hit, certainly, and lasted.