“Backrooms” started as a viral internet concept and quickly became one of 2026’s biggest box-office surprises. Now, thanks to A24, viewers can stream this eerie horror sensation at home and experience the phenomenon for themselves.

Missoula’s Roxy Theater hosts two contrasting films—a sunny tale from the director of “Once,” featuring Paul Rudd as a wedding singer with a stolen hit song, and a haunting plunge into eerie liminal spaces in “Backrooms.” It’s a cinematic experience that balances lighthearted fun with unsettling intrigue.