EXCLUSIVE: Matthew McConaughey is set to join Channing Tatum and Alex Pettyfer in Steven Soderbergh’s indie drama “Magic Mike.”Tatum stars as the title character, a stripper and dancer who takes Pettyfer’s character under his wing and mentors him on how to hustle both on and off the stage. McConaughey will play Dallas, a former exotic dancer who now owns and operates Xquisite, the club where “Magic Mike” works. Pic draws on Tatum’s experiences working as a teen stripper in Tampa. Nick Wechsler and Gregory Jacobs are producing with Tatum and his 33andOut Prods. partner Reid Carolin, who’s also writing the script. “Magic Mike” marks the fifth straight indie McConaughey has done since wrapping Lionsgate’s “The Lincoln Lawyer.” He’s currently filming Lee Daniels’ thriller “The Paperboy” and recently signed on to play the title character in Jeff Nichols’ drama “Mud.” Thesp next stars in Richard Linklater’s “Bernie” and William Friedkin’s “Killer Joe.” McConaughey is repped by CAA.