A US judge has thrown out legal claims by a driving instructor and two etiquette teachers who claimed they were deceived by the makers of Borat.
In a ruling made last week, New York judge Loretta Preska said they accepted money and signed agreements releasing the film-makers from liability.
She noted they had agreed to appear in a "documentary-style" film, the Associated Press news agency reported.
Borat, starring British comedian Sacha Baron Cohen, took £150m in cinemas.
The 36-year-old played an uncultured and anti-Semitic Kazakhstan journalist travelling across the US in pursuit of actress Pamela Anderson in the 2006 film.