It features a series of knitting patterns issued by Sirdar that were inspired by historic items (though the company is not mentioned in the film).
One of the patterns in the same series that is not featured in the film is a man's pullover modelled by Roger Moore (shame he's not in the film). And I wrote about another of the patterns here - a Lady's Lacy Jumper inspired by a knitted doily. Here's its back view from the film, showing the interesting construction.
|Sirdar 1401 - back|
|Beaded pincushion - source for Sirdar 1410|
So these designs are unlike modern vintage knits, which aim at something close to the original, but updated. Instead, they take a stitch detail or a technique from the original, and incorporate it into a completely new design. I kind of like them, although the models have such tiny waists they don't seem like real women, but if you can persuade yourself to look at them with a 1950s eye they look elegant. And the doily-jumper is such an off-the-wall idea - I like designs that abandon the usual back, front, sleeves construction. I'm not sure I would actually want to knit any of them, though.