From the back of the DVD box, the basic summary of the film is as follows:
"The stuff of folklore, ‘Once in a Blue Moon’ unravels the mystery of an event that occurs briefly once a decade. This strange and unreal journey takes us into some of the most remote and beautiful parts of New Zealand as we follow one anglers quest to document and unravel a childhood mystery and catch the fish of a lifetime."The "mystery of an event" described above is that the mice population swells every few years to the point that there's so many, they become targets for really big brown trout (if they fall into or attempt to swim through the water). This puts the folks making the film on a quest to see if they can not only time the rodent explosion correctly, but also land some of these trout on mice flies...yes, mice flies.
Of course they do, and gratuitous fish porn results. We're talking great footage of the New Zealand landscape (via helicopter), some superior fly casting technique, and the cruising/feeding trout (via underwater camera). The thing I really appreciated was that this isn't the typical "trout bum" DVD that's out there these days - it's a little more scientific in approach, something similar to what you might find on the National Geographic channel. I especially like the little segment on the eels that also like to dine on the mice.
The DVD is about 40 minutes long, and goes for about $30 bones.