With guidance from director Steven Soderbergh, ex-stripper Tatum has impressed audiences with sure-footed, naturalistic performances. Where does he go after Friday's Side Effects? Tatum with Rooney Mara in the upcoming Soderbergh-helmed thriller 'Side Effects.' (Open Road) When, in 2011, Steven Soderbergh announced his forthcoming retirement , film geeks pulled up his development slate on IMDb Pro to find that three of the great director's final four movies—including this Friday's new medical thriller Side Effects—would be starring Channing Tatum.