Movie Orgasms: The Least Believable Sex Scenes In Film (VIDEO)

We all know that movies don't always do such a great job of accurately representing real life, but that has never been more obvious than when you're watching an on-screen sex scene.

In film, women often seem to orgasm at the drop of a hat -- or an orchid petal in the case of "40 Days and 40 Nights" -- and do all sorts of yodeling while they're at it. Most of us know that in reality, a woman's body usually doesn't work that way.

To capture just how absurd some of these performances are, we've rounded up some of the least believable movie orgasms into one epic mashup. From Kristen Bell's aerobic climax in "Forgetting Sarah Marshall," to the pleasure machine in "Barbarella," to Katherine Heigl's dinner table orgasm in "The Ugly Truth," we hope these scenes will make you glad that your real sex life is nothing like the movies.

Video produced by Amber Genuske.