I found this special little video on clip on Youtube. Youtube is so flippin' addictive! Anyways, it features Veronica Lake and that nostalgic male voice-over of films and cartoons during that era. Here's the paragraph that accompanied the video:
In the early 1940s, American film actress Veronica Lake changed her trademark peekaboo hairstyle to encourage women working in war industry factories to adopt more practical, safer hairstyles. Veronica Lake was a popular American film actress who enjoyed both popular and critical acclaim, especially for her femme fatale roles in film noir with Alan Ladd during the 1940s. A stray lock of her shoulder-length blonde hair during a publicity photo shoot led to her iconic hairstyle which hid one eye, and was widely imitated.