“Songbird” is a forthcoming movie set in a world where the American population has been under strict lockdown for something like four years due to COVID-23. It seems to be a major studio movie with a few known actors, but a lot of it seems to be set in a single apartment. So… it probably didn’t cost that much.  According to Wikipedia:

On May 19, 2020, it was reported that Michael Bay, Adam Goodman and Eben Davidson would produce a film about the ongoing COVID-19 pandemic, titled Songbird. Adam Mason, who co-wrote the screenplay with Simon Boyes, was set to direct.[1]

In June 2020, Demi Moore, Craig Robinson, Peter Stormare and Paul Walter Hauser were cast.[2] In July, Bradley Whitford, Jenna Ortega, KJ Apa and Sofia Carson joined the cast.[3][4]

The cast were remotely trained in preparation for the shoot.[1]

Filming
Principal production commenced on July 8, 2020, in Los Angeles.[3] Filming was initially halted by SAG-AFTRA, who granted the production permission to proceed a day later.[5] The film wrapped on August 3, 2020.[6]

I’ve no idea if it’ll be any good or not, but it would seem to show that a reasonably-major movie can be made quickly and probably inexpensively… thus not needing the Chinese Communist Party to fund it and censor it.