A24’s “Backrooms,” the feature debut from 20-year-old YouTube creator Kane Parsons, generated unprecedented pre-release momentum for an original horror title. Tracking estimates surged from an initial $40-55 million range to $70-90 million projections after previews alone delivered over $10 million and opening-day figures hit $33-38 million across 3,442 theaters. Strong 87% Certified Fresh reviews, dominant under-35 audience turnout, and comparisons to breakout hits like “Five Nights at Freddy’s” reinforced trader consensus for the >61 million outcome. An upset below that threshold would require an unprecedented collapse in walk-up sales or negative word-of-mouth that has not materialized in verified data.