Watch the movie, then the series, then the movie again. BECAUSE THAT'S HOW IT HAPPENED TO ME! For some reason, the movie scared the shit out of me the first time I watched it. Horror movies don't affect me at all, but my heart was actually racing so fast I couldn't sleep that night.
Also, I hope you aren't homophobic at all. There are parts of both the series and the movie that would make Scott Thompson go, "Holy shit! That's fucking gay!"