Carl's Jr.'s (in)famous ad for the Spicy BBQ Six Dollar Burger featuring Paris Hilton washing a Bentley will be parodied in the upcoming film Date Movie. The movie is full of parodies, much like the Scary Movie films.
Unfortunately for Carl's and their ad agency, I doubt it was taste of the burger or the creativity of the ad that got the screenwriters' attention... just Paris.
The parody of the Carl's ad, actress Sophie Monk does the car washing. You can catch a glimpse of the parody in the trailer for the film.