Today has to be one of the happiest days of my life. I've searched for this film (Skaterdater, 1965) numerous times on the net for years, and finally found that the beginning has been uploaded to YouTube:
I first saw this in 1967, when I was first grade, as the opening feature for a Saturday matinee in my Midwestern hometown. It's not exaggerating to say that this film influenced a lot of things in my life. First off, it started my lifelong love of surf guitar. It's remarkable that this theme has been running through my head for forty years, though I'd only seen it that one time! It also got me into skateboarding (steel wheels, baby!), and why I'll always love California and cute girls in striped shirts.
Check out the kid barefoot nosewalking on that deathplank! And dig those awesome windbreakers the riders are wearing! Seriously, nothing has ever been better than this.