Question: Are Sean Weathers and Yannis Smaragdis of the same nationality?

Context paragraphs:
Yannis Smaragdis: Iannis Smaragdis (Greek: Γιάννης Σμαραγδής ) is a Greek film director.

El Greco (soundtrack): El Greco Original Motion Picture Soundtrack is a soundtrack album featuring the music score for the 2007 film "El Greco", by Greek electronic composer Vangelis, released in Greece and Cyprus by Universal Music Greece.  The film, directed by Yannis Smaragdis, follows the life of Greek painter, Doménicos Theotokópoulos, as he travels to Italy and Spain where he becomes known as El Greco (The Greek).  Vangelis previously worked with Yannis Smaragdis on his 1996 movie about the Greek poet Kavafis (a.k.a. Cavafy).  It won the award for best music score at the 48th Greek State Film Awards in 2007.

God Loves Caviar: God Loves Caviar (Greek: Ο Θεός αγαπάει το χαβιάρι , translit.  O Theós agapáei to chaviári; in Russia known as Pirates of the Aegean Sea) is a 2012 Russo-Greek drama film directed by Yannis Smaragdis.

Yannis Stankoglou: Yannis Stankoglou (Greek: Γιάννης Στάνκογλου , 1974) is a Greek actor of Gagauz nationality.

Jeff Roches: Jeff Roches is an American actor, best known for his work with director Sean Weathers.  He is the youngest of six children.  After his studies in classical music for six years, he completed his first of fifteen short stories at the age of 18.  He would go on to write articles on his view of life.  In 2000 he composed a four-minute symphony "untitled", a combination of; symphony drums, flute, violin, trumpet, and cello for orchestra.  A year later he decided not to continue his music career, though he performed as hype-man for rapper 'Timothy Dark' from 2001 to 2003 in various settings, and clubs including CBGB's, and "Sidewalk cafe".

El Greco (2007 film): El Greco is a Greek biographical film about the life of the Greek painter of the Spanish Renaissance, Domenicos Theotokopoulos, known worldwide as El Greco.  Based on the fictionalized biographical novel, "El Greco: o Zografos tou Theou" ("El Greco: the Painter of God"), by Dimitris Siatopoulos, it was released in 2007, directed by Yannis Smaragdis and written by Jackie Pavlenko.  The main cast features prominent contemporary Greek actors like Lakis Lazopoulos, Dimitra Matsouka and Dina Konsta, and includes popular actors of the Greek cinema of the 1960s such as Sotiris Moustakas and Katerina Helmi, who, along with Juan Diego Botto, Laia Marull and others, surround the leading actor, Nick Ashdon, who portrays El Greco.

House of the Damned (1996 film): House of the Damned is a 1996 American zombie horror comedy film that was written and directed by Sean Weathers.  It was first released on August 20, 1996 through "Full Circle Filmworks", but was re-released in 2011 through Music Video Distributors (MVD).  The film is Weathers' first film and was dedicated to his best friend and script supervisor Jahvaughn Lambert, who committed suicide before the film was finished editing.

Homecoming Song: Homecoming Song (Greek: Το Τραγούδι της Επιστροφής , translit.  To tragoudi tis epistrofis) is a 1983 Greek drama film directed by Yannis Smaragdis.  It was entered into the 13th Moscow International Film Festival.

Sean Weathers: Sean Weathers (born January 14, 1980 in Jonestown, Guyana) is an American, New York City based, film director, producer, screenwriter, editor, casting director and actor.  Weathers specializes in making low-budget films primarily in the erotic and horror genres using skeleton crews and guerrilla filmmaking tactics.

Supporting paragraphs: Sean Weathers Yannis Smaragdis
Answer: no