I remember as a child, my mom got me Sonic the Hedgehog: The Movie on a library rental; in the bonus features was a trailer for Slayers: The Motion Picture. I watched that trailer over and over, being in love with the song.
Years later (actually, this was 10 years ago! I would've been 13 at the time) I recalled that trailer and song, and found the whole film available on YouTube to watch. It was amazing - met my expectations! Beautiful main characters, good humor, exciting action, well-added drama...
The English dub was excellent, as well. Cynthia Martinez really brings out Lina Inverse's fiestiness; while I expected Naga to sound more seductive, I appreciated the haughtiness to her voice, brought by Kelly Manison. Upon my first viewing, I was wondering if these characters, given by their names, were really meant to be European, and also if Naga's laugh sounds like the original Japanese. It turned out I might as well be right!
I also learned afterwards that this is based on an anime series. Thankfully, you don't even need to watch it first in order to understand this. It's short, sweet, and stands as its own. And if it wasn't for The Motion Picture, I wouldn't have checked out and fallen in love with the Slayers show.
I went through a period of time when I was obsessed with the theme, "Midnight Blue" by Megumi Hayashibara (Lina's original voice actress). I'd listen to it endlessly, much to the annoyance of my family!
I love this movie so much, I added it to my Christmas list in 2015, and got it on DVD in the mail.