The poster for The Better Sister isn't just marketing—it's a cryptic blueprint. With Jessica Biel and Elizabeth Banks flanking the tagline “In this family, deceit runs deep,” the design weaponizes duality like a Rorschach test for dysfunction.
The trailer's plot—estranged sisters, a murdered husband, buried secrets—mirrors the poster's visual sleight-of-hand. Notice how Biel's name sits above Banks', mimicking Chloe's “perfect life” vs. Nicky's scrappy chaos? The tagline's jagged font? It's not just aesthetics; it's a breadcrumb trail. The Better Sister follows a lineage of female-driven thrillers (Big Little Lies, Sharp Objects), but here's the twist: sibling rivalry isn't the villain—generational rot is.

Creator Olivia Milch (Ocean's 8) and Regina Corrado (Sons of Anarchy) aren't new to crafting fractured women. But The Better Sister leans into a Succession-esque collapse of privilege. Chloe's “picturesque life” (Biel, all icy glamour) vs. Nicky's “struggle to stay clean” (Banks, raw and unkempt) isn't just personal—it's systemic. The poster's shadowy gradient? A metaphor for the family's performative veneer cracking under trauma.
Historical context? Amazon's doubling down on Gone Girl vibes after The Lost Lie underperformed. But this time, they've got Biel—who's quietly become the queen of morally gray roles (The Sinner)—and Banks, whose comedy chops (Pitch Perfect) sharpen her dramatic edge.
“Every family has a history,” the trailer warns. Will this one's bury them—or bond them? The Better Sister premieres May 29 on Prime Video. Mark your calendar—or risk your group chat spoiling the twist.