From the Japanese movie Beautiful Teacher in Torture Hell (IMDB:
http://www.imdb.com/title/tt0223848/)
BTTH-01.avi: The teacher must strip in front of and have a kendo fight against some blackmailers. At least I think they're blackmailers. I haven't actually watched the full movie at all. She starts to kick his ass, but then they cheat.
BTTH-02.avi: The teacher is being tied up but makes a daring escape. She gets out through a window and crosses some rocks all while being naked and bound
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Since this is a Japanese movie, all genatalia... genitalia... all female crotch shots will be strategically covered or, as in the second clip, hideously blurred out.