He may have again used a green screen with the background edited in.

We have one more surprise for our #BearGrads: A special message from one of Springfield's own.

Thanks, Brad. pic.twitter.com/tCtWgzhozI

— Missouri State (@MissouriState) May 19, 2020

Come on Brad Pitt! Help the girl out! https://t.co/n0uQZ4J56m

— Jennifer Kielman (@JenniferKielman) May 13, 2020

“The answers we seek are just outside our reach.” Two of my favorite posters from our campaign #AdAstra pic.twitter.com/GNNB0e5cw2

— Asad Ayaz (@asadayaz) May 20, 2020