Lucy Standbridge (Aubrey Plaza) has inherited her father's publishing house, and the ambitious would-be editor has nearly sunk it with failing titles. She discovers she is owed a book by Harris Shaw (Michael Caine), a reclusive, cantankerous, booze-addled author who originally put the company on the map decades earlier. In a last-ditch effort to save the company, Lucy and Harris release his new book and embark on a book tour from hell that changes them both in ways they didn't expect.
"Best Sellers is a fun, swiftly moving small tale that benefits enormously from having the venerable Michael Caine as its center. He gives depth to the grumpy old man trope and grows into his role gracefully, pulling everyone else with him. Aubrey Plaza as Lucy more than holds her own. Never really lost, her character finds inventive ways to move forward. Plaza and Caine make a very good team and she rises to the occasion presented to her." - Neely Swanson, EW