This film is available in two different forms. A 34 minute classroom version has been created and can be purchased for either a K-12 institution or an institution of higher learning. With this version also comes the full 87 minute version.
http://www.vanishingbees.com/educational-version/
The full 87 minute version is available for purchase to view on YouTube.
https://www.youtube.com/movie?v=sFnuYWzksrk&feature=mv_sr
Your local library will likely have a copy it can get for you too. For instance the Whatcom County Library System (WCLS) has two copies of the film for check out. Library systems are interconnected so chances are your library can send away for a copy from a neighboring locale.
http://wcls.bibliocommons.com/item/show/990942044_vanishing_of_the_bees