Well sometimes they shoot more than one style of movie in a single session, especially with fetish films which are each so specific in theme and object of affection. Most vids are only 30-45 minutes long, an hour if you're lucky. A company could pay two models a single flat rate, shoot a foot show video, than do a tickling video directly after, THAN have the revenge of the ticklee for a third and finally some kind of lesbian/bondage/foot worship scenario. FM especially is notorious for doing that, they just release each one far apart from each other so no one really cares to notice. Its more economical that way 😀 LOL