EXCLUSIVE: The Office alum Paul Lieberstein’s feature directorial debut Song of Back and Neck is making its world premiere today in the U.S. Narrative Competition section at the Tribeca Film Festival. The pic stars Lieberstein and Rosemarie DeWitt; Lieberstein, the Office regular who became the series’ showrunner later in its run, stretches his legs as a feature writer-director after helming TV episodes including The Mindy Project and The Newsroom.

In the dark comedy he plays Fred Trolleycar, who is on a journey to find a cure for his chronic back pain. Along the way he discovers an unusual talent, finds unexpected love (with DeWitt), and that his feelings may have been the cause of his pain all along. Brian D’Arcy James, Sam Anderson, Robert Pine, Clark Duke, Ike Barinholtz and Paul Feig co-star. The movie was inspired by Lieberstein’s own struggles with back pain; he was healed after his wife gave him a copy of Dr. John Sarno’s book Healing Back Pain.

Lieberstein, Jennifer Prediger and Kim Leadford are producers. Fernando Loureiro, Roberto Vasconcellos, Allen Babakhanloo, Fouad Mikati and Lauren Russell are executive producers.

Song of Back and Neck bows this afternoon at 5:30 PM ET at the SVA Theater 2 Beatrice. CAA is handling sales.

Check out the clip above.