Thanks. More great suggestions. I'd forgotten about Carrie Fisher in Star Wars, although her hair wasn't down enough as I recall. Maybe in a few scenes in Return of the Jedi.
I don't remember Jane Seymour having particularly long hair in Live and Let Die. Maybe I'll have to watch again. I remember her wearing it up in all the scenes she was in.
I'll keep an eye out for the others and post some pics/clips on the site.