Which film director has also worked as an actor, Percy Adlon or Duccio Tessari?
Duccio Tessari
Percy Adlon
Paul Rudolf Parsifal "Percy" Adlon (] ; born 1 June 1935) is a German director, screenwriter, and producer.
 He is best known for his film "Bagdad Café".
 He is associated with the New German Cinema movement, whose "members" also include Werner Herzog and the illustrious Rainer Werner Fassbinder.
Duccio Tessari
Duccio Tessari (11 October 1926 – 6 September 1994) was an Italian director, screenwriter and actor, considered one of the fathers of spaghetti westerns.
Róbert Koltai
Róbert Koltai (born 16 December 1943) is a Hungarian actor, film director and screenwriter.
 He has appeared in over 90 films since 1967.
 He appeared in the 1976 film "Man Without a Name", which was entered into the 26th Berlin International Film Festival, where it won the Silver Bear for an outstanding single achievement.
 He also appeared in Béla Tarr's 1981 film, "The Prefab People".
 From the 1990s onwards, Koltai also worked as a successful film director. The Heroes (1973 film)
The Heroes (also known as Gli eroi, "Les héros" and "Los héroes millonarios") is a 1973 Italian war-comedy film directed by Duccio Tessari. Long Live Your Death
Long Live Your Death (aka "Don't Turn the Other Cheek!"
, originally titled "Viva la muerte... tua!")
 is a 1971 Italian/Spanish/German international co-production spaghetti western/ action comedy film directed by Duccio Tessari.
 The film is mostly a send up of "political" Spaghetti Westerns (also called Zapata Westerns), like A Professional Gun and Compañeros. Zorro (1975 Italian film)
Zorro is a 1975 Italian/French film based on the character created by Johnston McCulley.
 Directed by Duccio Tessari, it stars French actor Alain Delon as Zorro.
 Filmed in Spain, this Italian movie has many spaghetti western elements to it. Bagdad Café
Bagdad Café (also known as Out of Rosenheim) is a 1987 German film directed by Percy Adlon.
 It is a comedy-drama set in a remote truck-stop café and motel in the Mojave Desert in the US state of California.
 Loosely based on Carson McCullers' novella "The Ballad of the Sad Café" (1951), the film centers on two women who have recently separated from their husbands, and the blossoming friendship that ensues.
 It runs 95 minutes in the U.S. and 108 minutes in the German version. La madama
La madama, also known as "Sexycop", is a 1976 Italian crime comedy film directed by Duccio Tessari.
 It is based on the novel with the same name written by Massimo Felisatti and Fabio Pittorru. Three Tough Guys
Three Tough Guys (also known as "Tough Guys") is a 1974 crime-action film directed by Duccio Tessari.
 It may be regarded as an example of the Blaxploitation genre.
 It stars Lino Ventura, Fred Williamson and Isaac Hayes, who also composed the soundtrack.
 It is a coproduction between United States, Italy (where it was released "Uomini duri") and France (where is known as "Les Durs").
 The film was shot in Chicago. My Son, the Hero
My Son, the Hero (Italian title: "Arrivano i titani"; alternative English title: Sons of Thunder) is a 1962 Italian mythological sword-and-sandal comedy film directed by Duccio Tessari and starring Giuliano Gemma, Jacqueline Sassard, Pedro Armendáriz, Antonella Lualdi and Serge Nubret.
 Also known under the title in the UK as 'Sons of Thunder'.