Tirolerhut

The full name of this one is Ich kauf mir lieber einen Tirolerhut, and it's a German comedy from 1965.

A group of models take over a resort with their boyfriends, and the local women are not having any of their loose lifestyles.

The local women get together and kidnap the models from their beds, resulting in one of the best barefoot bondage scenes, with the largest number of BF women bound and gagged.

The trussed up models are placed in a barn, but they manage to work themselves free and escape. The whole thing is very lighthearted, with a lot of over the top humor. You can see the clip from M Johns right here.