[pct-l] looking for video

[Marion Davison]

I am taking 100 first graders for a short hike on the PCT locally in 
about a week.  I am looking for useful materials to put in a powerpoint 
show to teach them about the trail a couple days before we go.
I once saw a short video made by a hiker.  It was posted online but I 
don't find it on Youtube.  I think it was called "Trailflow
It consisted of a bunch of still photos taken looking uptrail and 
appearing at a rapid pace, so you always see the trail in front of you 
but the habitat keeps changing. It did a great job of showing all the 
different habitats encountered along the trail.
Is anyone familiar with this video, and do you know where I might find 
it online?  I'd like to show it to my students, if I can obtain 
permission to use it.
Any other suggestions of source material I can use to educate my kids 
would be much appreciated.