My favorite Laurel and Hardy film is A chump at Oxford in which Stan Laurel gets a knock on the head and becomes who he really was Lord Paddington.
Seems Paddington was a prof at Oxford and got a knock on the head and wandered off in a state of amnesia to become Stan.
It’s the only time he speaks as other than Stan Laurel in the films and it’s pretty interesting.
https://www.youtube.com/watch?v=Ok8fu30XA8g
You wouldn’t knowEinstein from a beer stein!