The screenplay credit may reveal more about “Sex Tape” than it cares to admit. Karen Angelo gets both a story and screenplay credit (yep, this movie was a woman’s idea), with lead actor Jason Segel and his writing partner Nicholas Stoller sharing a joint screenplay credit as well. For the sake of Segel and Stoller’s reputations as writers, we are going to hope that they went into production with Angelo’s draft of the script, only to have Segel and Stoller punch it up once they realized it wasn’t working, and then realizing that there wasn’t enough time to get it completely right, so they settled for this. That is the only way to explain how Segel and Stoller would be part of something so emotionally tone-deaf. The characters in “Sex Tape” don’t have personalities: they have quirks. That’s not the same thing, by a damned sight.
Annie (Cameron Diaz) and Jay (Segel) are harried with children, with neither the time nor the energy to invest in their sex life as they did when they were younger and childless. Both recognize that this is a problem, and they decide to make up for all of the missed opportunities by making a video of them performing every position in the 1972 book “The Joy of Sex.” The plan is for Jay to delete the video in the morning, only he doesn’t. Later the next day, Jay receives a text from an unknown number, telling him that they’ve seen the video. It went out after Jay did a group sync of the contents of his iPad (that was the camera) with several other iPads that he has recently given away to friends and colleagues. Annie is naturally embarrassed, but worse, she gave one of those iPads to Hank (Rob Lowe), who’s considering buying Annie’s mommy blog.