The movie "Backrooms" is expected to have a significant opening weekend at the box office, with some outlets suggesting it could become the biggest surprise hit of the summer. The film has already broken records for its studio, A24, with an opening of $81.5 million reported by one source, although the total box office take is not consistently stated across reports. "Backrooms" is also noted to have set a digital sales and rental date, indicating its upcoming release for home viewing.