No, the revelation of what's really going on is at the end of the movie. Leonard kills Teddy at the beginning. He makes a vague reference to the basement, but Leonard's got it written down that Teddy is the one he's looking for so he kills him

About Memento.

I like how it's a possibility that he killed the wrong guy. And that it could have happened in the past and could continue to happen in the future.

Maybe I interpreted this wrong, but that's what I got out of it.

I liked how the thing obviously didn't start when the movie did and didn't end when the movie did (even if it had been in chronological order). It gives it more weight

Memento was probly the first movie that really affected me in some way. Like emotionally and all that. The fact that he will never ever be satisfied and get revenge is just horrible. I also think it sucks that he killed Teddy. Didnt Teddy help him find this other guy that he killed? (like I said, I haven't seen it for probly a year)

yeah, and apparently helped him find the real one, too.