If you love old grocery stores as much as I do, this is one of those holy grail films....check out the glorious supermarket interiors (so much pastel!), the beautiful food packaging and the little magazine kiosk at each station. It's product placement heaven for the Reader's Digest family of magazines. (I guess you are entitled to do that when you finance the film.)
Also, I really love the cute little pink uniforms these checkers are wearing, not the blue one so much though.
I actually took a supermarket checker course at the community college back in 1990 and this is one of the films they showed us.....this one, and a really awesome 60's one about shoplifting, called The Shoplifter. Find it if you can, it's completely worth your time. It's full of hammy acting and it does show the fabulous interiors and merchandise of quite a few types of stores.
Lastly, I don't think we have a Checker of the Year anymore here in the states, but it looks like New Zealand does! :)