Fifteen years after the controversy surrounding the exaggerated and fabricated elements of James Frey’s bestselling 2003 memoir, A Million Little Pieces, director Sam Taylor-Johnson released a feature film adaptation of the book. Contrary to expectations that the film might reflect upon the controversy, Taylor-Johnson instead chose to take a rather straightforward approach to the literary source material, faithfully recreating its narrative content with virtually no references to events that transpired following the memoir’s publication. This chapter examines the film, paying special attention to its critical reception. The predominantly negative consensus among the film’s critics implicitly raised questions about how to appropriately adapt nonfictional texts that have, themselves, been unfaithful reproductions of the supposedly “true” stories they narrate. The critics’ disproval of the film’s approach to its subject matter reveals how adaptations of nonfictional sources operate within two competing frameworks of fidelity: its adherence to specific textual sources, versus its adherence to an ostensibly authentic representation of the “reality” being depicted. The distinction between these dual fidelities rarely becomes visible, except in cases wherein the source is known to be an inaccurate reflection of reality. Using previous scholarly work by adaptation theorists to help disentangle these circumstances, this chapter seeks to reconsider how conceptions of truth, authenticity, and nonfictionality impinge upon more common understandings of fidelity in adaptation.