Superstar Brad Pitt obviously doesn't take himself TOO SERIOUSLY as an actor.
Because RadarOnline.com can exclusively reveal that the 50-year-old filmed a hilarious cameo playing himself working as a university librarian in 22 Jump Street starring Jonah Hill and Channing Tatum.
Hill - who starred alongside Pitt in 2011's Moneyball - persuaded his A-list friend to do the quirky scene.
The sequel to 21 Jump Street sees hapless cops Jenko (Tatum) and Schmidt (Hill) continue their undercover work while on campus.
In an attempt to blend in with their fellow students Jenko joins the football team while Schmidt becomes part of the art clique as they try to crack their case.
During their investigation the pair stumble upon Pitt inside the campus playing himself as a low-paid librarian.
The talented star then purposefully does some dodgy acting that doesn't go un-noticed by the two undercover cops.
An insider revealed to Radar: "The scene is very funny and the guys had a great time doing it.
"Brad was a great sport and the producers were thrilled that he took part."
Tatum and Hill have recently been filming the sequel on the campus of Tulane University in New Orleans while Pitt has been relaxing with his family in Australia after working in Britain on his latest World War II blockbuster Fury.
Directed by Phil Lord and Chris Miller 22 Jump Street also stars rapper Ice Cube and newcomer Amber Stevens - it is slated to be released next summer.
The big screen sequel is a spin-off of the famed original television series that starred Johnny Depp in the late 80's.
The first 21 Jump Street movie was a surprise hit at the box office in 2012 grossing over $200 million in ticket sales worldwide.