The scenes were being shot in Scotland and are of a street celebration for the Apollo 11 astronauts. Therefore, it's safe to guess that this part of the Indiana Jones saga will be set in the late-1960's.
More images and videos were released the following day.
I saw footage of Harrison Ford's stunt double riding on a horse as a procession of bagpipers played as they marched the streets. The horse appears to be followed by a motorcyclist.
In a picture taken by somebody watching the scenes, Phoebe Waller-Bridge is shown in character.
I am looking forward to its release, which is scheduled for July 28 2022.