Question: Which film did Gilles Tschudi star in, in which he worked alongside actress Kristen Stewart?
Context: Hallee Leah Hirsh (born December 16, 1987) is an American actress known for her roles as Mattie on "JAG", Daley in the children's series "Flight 29 Down", and as the second (and final) actress to portray Rachel Greene on "ER".  Starring alongside Kristen Stewart, Hirsh portrayed the role of Rachel Bruin in "Speak". Adventureland is a 2009 American romantic comedy-drama film written and directed by Greg Mottola, starring Jesse Eisenberg and Kristen Stewart and co-starring Ryan Reynolds, Kristen Wiig, Bill Hader, Martin Starr, and Margarita Levieva.  The film is set in the summer of 1987 when recent college grad James Brennan (Jesse Eisenberg) is making big plans to tour Europe and attend graduate school in pursuit of a career in journalism.  However, financial problems force him to look for a summer job instead of traveling abroad, which places him at Adventureland, a run-down amusement park in western Pennsylvania.  There he meets Emily Lewin (Kristen Stewart), a co-worker with whom he develops a quick rapport and relationship. Gilles Tschudi is a Swiss actor.  He is notable for his 2004 Swiss Film Prize for "Performance in a Supporting Role" as "Secretary Goltz" in "Jagged Harmonies - Bach vs. Frederick II" and for appearing in the film "Cargo".  He also appeared in the film "Clouds of Sils Maria" and in "Lüthi und Blanc" (television series, 1999–2006), "Das Paar im Kahn" (2004), "Hunkeler macht Sachen" (2008) and "Hunkeler und die Augen des Ödipus" (2012). The Cake Eaters is a 2007 American independent drama film about two small town families who must confront old issues with the return of one family's son.  The film was directed by Mary Stuart Masterson (in her feature film directorial debut) and stars Kristen Stewart, Aaron Stanford, Bruce Dern, and Jayce Bartok.  Kristen Stewart is featured as Georgia, a young girl with Friedreich's ataxia, a rare disease for which there is no cure. Isabella Marie "Bella" Swan (later Bella Cullen) is a character and the protagonist of the "Twilight" series, written by Stephenie Meyer.  The "Twilight" series, consisting of the novels "Twilight", "New Moon", "Eclipse", and "Breaking Dawn", is primarily narrated from Bella's point of view.  In the film series, Bella is portrayed by actress Kristen Stewart. Wash Westmoreland, also called Wash West, (born 4 March 1966) is an independent film director who has worked in television, documentaries, and independent films.  His 2006 release, "Quinceañera", had a double Sundance win (Audience Award and Grand Jury Prize), and it also picked up the Humanitas Prize and the John Cassavetes Spirit Award.  In 2008, Westmoreland produced an MTV film "Pedro" about AIDS activist Pedro Zamora that was introduced on MTV by U.S. President Bill Clinton.  Working with his partner Richard Glatzer, he directed "The Last of Robin Hood" in 2012 starring Kevin Kline, Susan Sarandon, and Dakota Fanning that was released in August 2014 by Goldwyn.  The duo's next film "Still Alice", based on Lisa Genova's NYT bestselling book, starred Julianne Moore, Kristen Stewart, and Alec Baldwin.  It premiered at Toronto International Film Festival in 2014 and was immediately picked up for distribution by Sony Picture Classics.  It went on to win many awards, especially for leading actress Julianne Moore, who won the SAG Award, the Independent Spirit Award, the BAFTA and the Academy Award for Best Actress. "Not to be confused with the American actress Kristen Stewart." The Twilight Saga: Breaking Dawn – Part 2 (commonly referred to as Breaking Dawn: Part 2) is a 2012 American romantic drama fantasy film directed by Bill Condon and based on the novel "Breaking Dawn" by Stephenie Meyer.  The second part of a two-part film forms the fifth and final installment in "The Twilight Saga" film series, and is the conclusion of the 2011 film "".  All three main cast members, Kristen Stewart, Robert Pattinson and Taylor Lautner, reprise their roles, with Mackenzie Foy portraying Renesmee Cullen.  Alongside Pattinson, Lautner, Stewart and Foy, the film also stars an ensemble cast such as Billy Burke, Peter Facinelli, Elizabeth Reaser, Kellan Lutz, Nikki Reed, Jackson Rathbone, Ashley Greene, Michael Sheen and Dakota Fanning. Clouds of Sils Maria (known simply as Sils Maria in some territories) is a 2014 drama film written and directed by Olivier Assayas, and starring Juliette Binoche, Kristen Stewart, and Chloë Grace Moretz.  The film is a French-German-Swiss co-production.  Principal photography took place from August to October 2013, with most of the filming taking place in Sils Maria, Switzerland.  The film follows an established middle-aged actress (Binoche) who is cast as the older lover in a romantic lesbian drama opposite an upstart young starlet (Moretz).  She is overcome with personal insecurities and professional jealousies—all while sexual tension simmers between her and her personal assistant (Stewart).  The screenplay was written with Binoche in mind and incorporates elements from her life into the plot. The various plot lines are about the fate of families around the stubborn chocolate factory-owner Jean-Jacques Blanc (Hans Heinz Moser), his wife Johanna (Linda Geiser), whose daughter Catherine (Isabelle von Siebenthal) and her son, and Catherine's husband Martin Lüthi (Hans Schenker).  Opponent of the Lüthi and Blanc-clans and "villain" of the series is the opaque, scheming bankers and illegitimate son of J.J. Blanc, Michael Frick (Gilles Tschudi).  The serial focusses on locations in Zürich and Sainte-Croix, the location of the fictional chocolate factory J. J. Blanc.
Answer: Clouds of Sils Maria