DVD Content + Movie Trailers

I was wondering, when you folks use DVD content that you have licensed, do you use images from the models featured in the trailers before and after the 'actual' movie itself has played?

There are a few models on some DVDs that we are encoding right now that would be perfect to use on an upcoming project but im wondering what the general consensus is about using images of models featured in the movie trailers, rather than the main porn movie itself?

Do you use them, think there could be any potential issues in using stills in this manner?

Regards,

Lee