Question: What was the role of  Jeremy Piven in the 2015 American comedy film Entourage?

Context paragraphs:
Very Bad Things: Very Bad Things is a 1998 American black comedy film directed by Peter Berg.  It stars Cameron Diaz, Jon Favreau, Daniel Stern, Jeremy Piven, Christian Slater, Leland Orser and Jeanne Tripplehorn.

List of Entourage episodes: "Entourage" is an American comedy-drama television series created for HBO by Doug Ellin, who also serves as an executive producer along with Mark Wahlberg, Stephen Levinson, Dennis Biggs, Rob Weiss and Ally Musika.  The series, loosely based on Wahlberg's own experiences of the film industry, follows Vincent Chase (Adrian Grenier), a New York born actor living in Los Angeles as he struggles with the ups and downs of a career in Hollywood.  He is aided, and often hindered, by his entourage, which consists of his half-brother and struggling actor Johnny "Drama" Chase (Kevin Dillon), his childhood friend and manager Eric "E" Murphy (Kevin Connolly), his ruthless agent Ari Gold (Jeremy Piven) and his other long-time friend Turtle (Jerry Ferrara).  "Entourage" premiered on HBO on July 18, 2004 and aired its final episode on September 11, 2011.  A total of 96 episodes were aired over eight seasons.

The Goods: Live Hard, Sell Hard: The Goods: Live Hard, Sell Hard is a 2009 American comedy film directed by Neal Brennan, produced by Adam McKay, Will Ferrell, Kevin Messick and Chris Henchy, written by Andy Stock and Rick Stempson and starring Jeremy Piven, Ving Rhames, James Brolin, David Koechner, Kathryn Hahn, Ed Helms, Jordana Spiro and Craig Robinson.  Originally titled "The Goods: The Don Ready Story", the film was theatrically released on August 14, 2009 in the United States by Paramount Vantage and was released on DVD as a rental only with no special features November 17 and for sale December 15.  The film received mostly negative reviews from critics and grossed $15.3 million against a $10 million budget.

Spy Kids: All the Time in the World: Spy Kids 4: All the Time in the World is a 2011 American 4D spy adventure comedy film directed by Robert Rodriguez and it is the fourth and latest installment in the "Spy Kids" film series.  It is the stand-alone sequel to 2003's "", while also serving as a soft reboot of the franchise.  The film stars Jessica Alba, Joel McHale, Alexa Vega, Daryl Sabara, Rowan Blanchard, Mason Cook, Ricky Gervais, and Jeremy Piven in a dual role.  It was released on August 19, 2011.  Filming began on October 27, 2010.  It is the first of the series that uses "Aroma-scope" that allows people to smell odors and aromas from the film via scratch & sniff cards (reminiscent of the 1981 film "Polyester") last used theatrically in the 2003 animated film "Rugrats Go Wild".  This is the first film without the participation of Antonio Banderas and Carla Gugino and without the distribution of Miramax Films.  The film received generally negative reviews upon release, with an approval rating of 22% and an average rating of 3.9 out of 10 on Rotten Tomatoes.

Jeremy Piven: Jeremy Samuel Piven (born July 26, 1965) is an American actor and producer.  He is known for his roles as Ari Gold in the comedy series "Entourage", for which he won a Golden Globe Award and three consecutive Emmy Awards, and as Spence Kovak on Ellen DeGeneres's sitcom "Ellen".  He also starred in the British period drama "Mr Selfridge", which tells the story of the man who created the luxury English department store chain Selfridges.

Lose Yourself (Entourage): "Lose Yourself" is the seventh season finale of the American comedy-drama television series "Entourage".  It originally aired on HBO in the United States on September 12, 2010.  The episode mainly centers on Vincent Chase (Adrian Grenier), whose issues begin to intensify between his ex-girlfriend and his current girlfriend, Sasha Grey.  Although riddled with similar issues, Ari Gold (Jeremy Piven), Eric Murphy (Kevin Connolly), and Turtle (Jerry Ferrara) collaborate with each other in an attempt to orchestrate an intervention for Vince, only for things to get worse.

72nd Golden Globe Awards: The 72nd Golden Globe Awards, honoring the best in film and American television of 2014, was broadcast live from the Beverly Hilton Hotel in Beverly Hills, California on January 11, 2015, by NBC.  The ceremony was produced by Dick Clark Productions in association with the Hollywood Foreign Press Association.  George Clooney was announced as the Cecil B. DeMille Lifetime Achievement Award honoree on September 14, 2014.  Tina Fey and Amy Poehler were the co-hosts for the third consecutive and final time.  The nominations were announced on December 11, 2014 by Kate Beckinsale, Peter Krause, Paula Patton and Jeremy Piven. " The Affair", "Birdman", "Boyhood", "Fargo", "The Theory of Everything", and "Transparent" were among the films and television shows that received multiple awards.

Keeping Up with the Steins: Keeping Up with the Steins is a 2006 comedy film directed by Scott Marshall, and starring Garry Marshall, Jeremy Piven, Jami Gertz and Daryl Hannah.  The film is also a commentary on how too many Jewish families see a bar mitzvah or bat mitzvah not as a coming of age for their son or daughter, but rather as an excuse to throw outrageously lavish parties.

Carol &amp; Company: Carol & Company was an American comedy anthology series starring Carol Burnett, Jeremy Piven, Meagen Fay, Terry Kiser, Anita Barone, Richard Kind and Peter Krause that aired for two seasons on NBC from March 31, 1990 to July 20, 1991.

Entourage (film): Entourage is a 2015 American comedy film written, directed and co-produced by Doug Ellin, and serves as a continuation of the HBO TV series of the same name.  It stars the principal cast of the show, Kevin Connolly, Adrian Grenier, Kevin Dillon, Jerry Ferrara and Jeremy Piven, and follows actor Vincent Chase who goes overbudget on his directorial debut and must ask newly-appointed studio head Ari Gold for more money.

Supporting paragraphs: Entourage (film) Jeremy Piven
Answer: Ari Gold