Al Pacino and Anthony Hopkins cash easy paychecks for chewing the scenery in supporting roles in Shintaro Shimosawa’s preposterous thriller “Misconduct.”

Josh Duhamel is top-billed as an associate in Pacino’s law firm who obtains crucial evidence for a class-action suit against crooked pharmaceutical billionaire Hopkins — from Hopkins’ drug-addled mistress (Malin Akerman), who’s also Duhamel’s kinky ex-girlfriend.

Before you can say “conflict of interest,” Akerman turns up dead and Duhamel and his nurse wife (Alice Eve) are being menaced by an accountant (Byung-hun Lee) at Pacino’s firm, who moonlights as a hitman and is dying of tuberculosis. Some handsome location shooting in New Orleans doesn’t make up for the Oscar winners’ relentless hamming and a plot that twists way beyond credibility.