A REAL PAIN, starring Jesse Eisenberg and Kieran Culkin. Written and directed by Jesse Eisenberg. Only in theaters this fall. #ARealPain Written and directed by Jesse Eisenberg. Mismatched cousins David (Jesse Eisenberg) and Benji (Kieran Culkin) reunite for a tour through Poland to honor their beloved grandmother. The adventure takes a turn when the odd-couple's old tensions resurface against the backdrop of their family history.