Return to the Batcave; The Misadventures of Adam and Burt (2003).
IMDb meta data is 1h and 30m, rated 6.5 by 2,300 batfanatics.
Genre: Docucomedy.
DNA: Nostalgia.
Verdict: Batusi!
Tagline: Kapow!

Senior citizens Adam and Burt attend a charity fundraiser at a car museum, where the Batmobile is stolen right out from under their….selves. ‘Holy grand theft auto, Batfans!’ The elderly duo set off in pursuit of the krim(s) by foot, by car, by bus with the help of citizens they….reminisce about the good old days between popping ibuprofen.
Check that utility belt! It is a good natured reprise which it is hard not to like though the New York Times reviewer at the time managed to not like it. What a fuddy-duddy!
It is certainly more diverting than the ever so self-important retakes of the Caped One, Citizens.