The upcoming comedy film "Sex Tape" is about a couple that experiments with methods to spice up their relationship and sex life by recording themselves and making a sex tape.

After 10 years of being together and having two kids along the way, Jay and Annie, played by Jason Segel and Cameron Diaz, appear to have lost interest in their sexual attraction toward each other, and in an attempt to bring the excitement back to their relationship, the two decide to make a sex tape. To make things even more exciting and interesting, the two try every position found in a book called "The Joy of Sex" in a three-hour sex marathon session. However, due to the technology cloud, the two unknowingly leak the video and later on find themselves in a new struggle of retrieving and deleting the video file that has spread like wildfire. It spread so quickly and widely that even the mailman has seen the tape of the two doing it. The teaser poster's caption summarizes it quite well -- "They did everything but delete it."

In the upcoming film, Cameron Diaz does something that she previously has never done in her entire career -- she goes completely nude for the camera. The 41-year-old star described her first experience to Esquire Magazine, saying that it was "just part of the role." Her co-star Jason Segel gets his share of on-screen nudity as well. Cameron, who has been open about her personal life and about not wanting children, also has a scene where she goes into labor, ironic considering that she never really wanted to become a mother in real life.

Cameron Diaz will be the cover for Esquire Magazine's August issue to be released on the same day "Sex Tape" comes out. Both are set to be released on the July 18.