Budget: $120 million [source]
Opening weekend gross: $4 million
Factoring in marketing costs and the theaters taking their cut of the profits, Megalopolis would need to make at least $300 million to break even. I think it's safe to say that's not happening.
It would have been THE worst opening for a $100 million movie ever, had it not been for Pluto Nash's horriffic opening 22 years ago.
Even The New York Times is reporting near-empty screenings of Megalopolis!
The closest I've ever got to being alone in a theatre was a matinee showing of Don't Breathe like 4 weeks into its run. Got 15 minutes in before someone else came by.