This eye-popping tribute to melons (both modest and monstrous) is an edited excerpt from the BC Government Travel Bureau travelogue Okanagan Valley: British Columbia’s Orchard Playground (1943-1947). To read a description of the whole film, click here.
The BC Archives also holds some Travel Bureau photos of zucca farming and processing. These b&w stills were taken when the film was being shot, and show some of the same scenes. The archival photos can be viewed via this link.
Incidentally, this and many other BC government travelogue clips are featured in the DVD Evergreen Playland: A Road Trip through British Columbia (RBCM, 2008).