It's hard to keep things fresh in your relationship after 10 years of marriage and two kids -- which is why Cameron Diaz straps on a pair of rollerskates (and very little else) in the first clip from 'Sex Tape,' in an effort to try and seduce her husband while the kids are away for the night.

The first clip from the film, courtesy of Yahoo! Movies, shows how Annie (Diaz) is desperate to try and spice things up in her sex life with husband Jay (Jason Segel), putting on some sexy skivvies and a pair of rollerskates to entice him. She's certainly not quite Rollergirl from 'Boogie Nights,' but she's definitely earning Segel's jaw-drop.

The film follows the couple as they decide to make a sex tape in a desperate effort to revitalize their love life, employing every position from 'The Joy of Sex' in a marathon three-hour sex session. But when their very private video risks becoming very public, the pair race to keep their reputations intact.

We're still not sure if we're sold on 'Sex Tape,' the latest film from director Jake Kasdan, who reunites here with his 'Bad Teacher' star Diaz. Kasdan also directed Segel on episodes of 'Freaks and Geeks' and 'Undeclared' back in the day. While Kasdan has definitely given us laughs before with films like 'Walk Hard' and 'Orange County' and episodes of 'New Girl,' his latest effort still hasn't quite appealed to us yet. Hopefully they're saving the best parts (no pun intended) for the trailer.

'Sex Tape' also stars Rob Corddry, Ellie Kemper, and Rob Lowe, and hits theaters on July 18.

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