Trail of the Pink Panther series regulars include Herbert Lom as Chief Inspector Dreyfus, Graham Stark as Hercule LaJoy (last seen in the 1964 Pink Panther film "A Shot in the Dark"), Burt Kwouk as Clouseau's faithful man servant Cato and André Maranne as Sgt. François Chevalier. "Trail" featured the animated opening and closing credits, animated by Marvel Productions and written and directed by Art Leonardi. Director Blake Edwards dedicated the film to Sellers, "the one and only Inspector Clouseau." Despite the dedication, Sellers' wife Lynne Frederick filed a $3 million lawsuit against the film's producers and the studio, claiming that the film diminished Sellers'
A Shot in the Dark (1964 film) adapted from the French play "L'Idiote" by Marcel Achard. The film was released only a few months after the first Clouseau film, "The Pink Panther". Inspector Clouseau (Peter Sellers) of the Sûreté, the French national police, is called to the country home of millionaire Benjamin Ballon (George Sanders) to investigate the murder of his chauffeur, Miguel Ostos. The chauffeur was having an affair with one of the maids, Maria Gambrelli (Elke Sommer), and attacked her in her bedroom after she broke off with him. Miguel was shot and killed in her bedroom and Maria was found with the smoking gun