Mark Wahlberg shows Justin Bieber Entourage

Justin Bieber has been treated to an early screening of the 'Entourage' film by Mark Wahlberg and has praised it for being a ''great movie''.

The 'Boyfriend' hitmaker was thrilled when Wahlberg invited him to watch the final edit of the movie - on which he acts as executive producer - months ahead of the June release date and has revealed fictional movie agent Ari Gold - played by Jeremy Piven - reminds him of his own manager Scooter Braun.

Bieber posted on Twitter: ''Got to see the #entouragemovie thanks to my friend @mark_wahlberg. Great movie. Thanks buddy. Scooter is Ari. Lol. Everyone go see it. (sic)'' The feature film is a spin-off of the HBO TV series, which focuses on the career and Los Angeles lifestyle of Hollywood actor Vincent Chase, who is played by Adrian Grenier.

Grenier returns in the lead role for the film along with regular cast members Kevin Connolly, Kevin Dillon, Jerry Ferrara and Piven.

The TV show and movie are loosely based on Wahlberg's experience as an up and coming actor in Hollywood. Commenting on the big screen version, Wahlberg previously said: ''There is a lot of real stuff in there whether it's stuff that happened with me or other guys in the business ... The writer's certainly had creative liberty.''

The movie will also feature a number of celebrity cameos, including Wahlberg, DJ Calvin Harris, Jessica Alba, Liam Neeson and model Emily Ratajkowski, all of whom will appear as themselves.

Shortly after posting about the film, Bieber tweeted he was heading into the studio and would be ''working on new music''. The 21-year-old pop superstar has already confirmed he is working with Skrillex and Diplo on his next album, the follow-up to 2012's 'Believe'.