Paying tribute to an influential predecessor is an understandable—even admirable—artistic impulse. But here’s the catch: honoring someone by doing the very thing they had mastered inevitably invites comparison. This is where Trumbo, a biopic about legendary screenwriter Dalton Trumbo of Roman Holiday and Spartacus acclaim, falls short of its target. It is a good film—but not nearly as good as one that Trumbo himself would have written.