'The Housemaid': How Sydney Sweeney's scrappy thriller became the $240 million box-office hit no one saw coming

(L-R) Amanda Seyfried and Sydney Sweeney in "The Housemaid."

Lionsgate

• "The Housemaid" was a surprise hit at the global box office, earning over $200 million on a $35 million budget.
• Producer Todd Lieberman explained how the movie became an unlikely success story.
• A sequel, "The Housemaid's Secret," is already in the works.

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