Yes. Jeremy Piven portrays Vince's agent, Ari Gold, on the Entourage TV show and in the movie. Ari is based on Mark Wahlberg's real-life agent, Ari Emanuel, who began repping Mark in 1999 (VanityFair.com). The real Ari shares similar personality traits with Jeremy Piven's character. Ari Emanuel demonstrated these traits at the initial pitch meeting for the TV show.

"...I went into the initial pitch meeting and met [Mark Wahlberg's agent] Ari Emanuel, who said, 'All right, it's Mark and his life. This guy is going to write it, and if it sucks, we'll fire him and someone else will rewrite it,'" recalls Entourage creator Doug Ellin. "I had never seen anybody in this business really talk like that. ... So I said, 'This guy is a character. He has to be in the show.'"

Not only did Doug Ellin mold the Ari Gold character after Ari Emanuel, Ellin himself was eventually represented by Emanuel, and it was Emanuel who insisted that Jeremy Piven play the part. Many of Ari Gold's clients on the show are actually Ari Emanuel's clients in real life, including Vin Diesel and Larry David. On a side note, Ari Emanuel is the brother of former White House Chief of Staff Rahm Emanuel. -HollywoodReporter.com

While some Entourage character names are similar to the names of the real-life counterparts who inspired them (e.g., Ari Gold and Ari Emanuel), "Vincent Chase" is noticeably different than "Mark Wahlberg." It has been reported that the character is named after the legendary Hollywood acting teacher Vincent Chase, who Mark Wahlberg became friends with in 1997 while working on the Bill Paxton movie Traveller. In 2013, TMZ reported that the real Vincent Chase sent a cease and desist letter to Warner Bros., demanding that his name not be used in the Entourage movie.

However, according to Entourage creator Doug Ellin, Vincent Chase is named after Vince Vaughn, the actor who Ellin had envisioned as the star when he was writing the script. "It sounds crazy now because Vince Vaughn makes $20 million a movie, but nine years ago when I first started writing this script, I was like, 'Do you think there's a way we could get Vince Vaughn?'" said Ellin. "It was done completely as an homage to him." -HollywoodReporter.com

Aquaman is a watery nod to Mark Wahlberg's experience with his first major blockbuster, 2000's The Perfect Storm, directed by Wolfgang Petersen.

Yes, as indicated in the photos of the Entourage cast and their real-life counterparts at the top of this page, Eric "E" Murphy is in part based on Mark Wahlberg's friend Eric Weinstein, a former junkie who Wahlberg met on the set of 1995's The Basketball Diaries (Weinstein had been hired to instruct the actors on how to shoot up). The real "E" became Wahlberg's assistant. "I don't think I could go anywhere without him," said Wahlberg. -VanityFair.com

To a significant degree, "E" was also inspired by Wahlberg's longtime producing partner Steve Levinson (Lev), and it is Levinson (pictured below) who arguably shares more similarities with Connolly's character on the show. "Kevin Connolly's character, "E," is loosely based on a combination of the real "E," who was my assistant for twenty-some-odd years, and Lev, who's been my manager and producing partner," confirms Wahlberg. -IMDB Interview

The actor who portrays "E" on the show, Kevin Connolly, had real-life experience being part of an entourage. He was the foremost member of Leonardo DiCaprio's real-life entourage. Connolly knew Mark Wahlberg from the set of The Basketball Diaries, where Connolly had been hanging out as part of DiCaprio's entourage. -VanityFair.com

"No, no, not at all," says Mark Wahlberg. "Anybody who knows me and how I approach my work, I'm a preparation freak." Mark says that he has accepted roles without reading the script first, but that's only when directors he admires and has great relationships with come calling, including Tim Burton and David O. Russell. However, he always does read the script. -Howard Stern

"My assistant wanted to film my friends around me, because he just thought it was hilarious," Wahlberg told The New York Times in 2004. In order to have more flexibility in the storylines and to steer clear of Wahlberg's violent past (he served a month-and-a-half in prison as a teenager for trying to steal a Vietnamese man's beer and assaulting him using a hooked stick that took out an eye), it was decided that a fictional approach would be better than a reality show.

According to Entourage creator Doug Ellin, numerous people have claimed to take credit for coming up with the idea for the show. "It was [Steve Levinson] and Mark's idea, and maybe Eric Weinstein, and maybe about nine other people," Ellin told Vanity Fair in 2011.

Yes. The director of Queens Boulevard and Medellin, Billy Walsh (Rhys Coiro), was mainly inspired by Entourage writer Rob Weiss. "We came up with the idea of putting a director in, and I wanted it to be Rob Weiss," said Entourage creator Doug Ellin, who went to high school with Weiss and described him as "an extremely funny, slightly crazy, good-looking nutjob." Both Billy Walsh and Rob Weiss grew up part of wealthy New York families. Billy grew up in the New York suburb of Scarsdale. Weiss hails from the wealthy, predominately Jewish Five Towns area of Long Island. -Observer.com

Rob Weiss also shares a temper with his onscreen counterpart. He once shut down a set over a lost cell phone and got into massive screaming fights with actress Mira Sorvino, who starred in his 1993 film Amongst Friends, a Queens Boulevard-esque tale that was a favorite at the Sundance Film Festival that year.

The Billy Walsh character also shares some similarities with actor/independent film director Vincent Gallo, especially in appearance. They both are independent filmmakers and painters (on the show, Billy claims that he paints). Doug Ellin says that he also used his own experience as a novice director to inspire the character, in addition to finding inspiration in the stories of directors going crazy on sets.

No. Miramax co-founder and film producer Harvey Weinstein was not happy about his Entourage doppelganger, Harvey Weingard. "I'm at a party. Harvey Weinstein just came over and told me to tell my producers they're dead," says actor Kevin Connolly, who portrays Eric on the show. "'Tell them if they ever mention my name again, they're dead.'" The interaction was later incorporated into an episode of the show. Luckily, the often coarse producer called Entourage creator Doug Ellin and told him that he liked the scene. -HollywoodReporter.com

The license plate on the front of the 1965 Lincoln Continental Convertible is a reference to the hometown of the four main characters on the show. The plate reads, "QSV 11427," which refers to the name and zip code of Queens Village, New York, Vincent Chase's hometown. The hometown of most of the members of Mark Wahlberg's real entourage is Boston, Massachusetts.

Further explore the Entourage true story and movie via the videos below. Watch a Mark Wahlberg interview during which he discusses the parallels between his real-life entourage and the characters from the TV show.

• Official Entourage Movie Website