Worldwide Entertainment Group, the company behind the 2006 movie National Lampoon’s Pledge This! is suing the celebutante Paris Hilton for $75,000, claiming the heiress did not fulfill the “reasonable promotion and publicity” portion of her agreement as star of the film.

In a suit filed on Tuesday, Worldwide cites Paris’ lack of promotional efforts as the underlying cause of the comedy’s fizzle at the box office.