Mark Wahlberg: 'Justin Bieber Really Can Act'
Hollywood star praises pop idol's thespian skills...
And the Boogie Nights star also gave MTV News a few more hints about the nature of the basketball-based buddy movie that they are working on.
Wahlberg said: "It's set in [the world of] street hustling basketball. Obviously, [Bieber] is a very good athlete. People have seen him on MTV; he can play. But I also really think he can act.
"There's not going to be any shortage of pushing him in getting that kind of strong performance out of him, if we get to make the movie."
And he then quipped: "We're just going to have to make him realize that he's playing a character so he can't have the same hairdo."
The movie has been described as similar to the Tom Cruise and Paul Newman film The Color Of Money - in which Cruise played a hot-headed young pool shark and Newman his older mentor.
Wahlberg explained that Biebs will be playing a "wisecracking kid who's very talented".
The movie's progress has been slowed by delays with the script.