@GiordBtt said:

The only company listed here is Taylor Swift Productions which as far as I know have only ever produced movies, never distributed them. Do we know who will?

"This marks the inaugural step of a new line of business for AMC Entertainment. In addition to exhibiting TAYLOR SWIFT | THE ERAS TOUR concert film at its own theatres, AMC is also acting as the theatrical distributor, securing locations and screens with numerous other movie theatre operators throughout the U.S., Canada, and Mexico"

According to the IMDBPro listing (https://pro.imdb.com/title/tt28814949/companycredits), it's Variance Films (https://www.variancefilms.com/films) + the direct theatrical distrobution deal with amc theaters, cinemark theaters, cineplex entertainment, and regal cinemas.