“The Office” actor wasn’t a star on a series that produced several of them, but Paul Lieberstein is following in John Krasinski’s footsteps by writing, directed and starring in his own vehicle.

“Song of Back and Neck” has Lieberstein playing a lawyer with epic back pain (look for director Paul Feig in a cameo as his doctor).DeWitt’s a client with the acupuncturist on speed dial.

Clark Duke and Chelsea Cook also star in this modest farce, opening in limited release at the end of Nov.