How did he get the name Michael Caine?
When he began his career in reperatory theatre, he was known professionally as Michael Scott. But, on the phone to this agent, he was told he’d been offered a part in a film and couldn’t use that name as there was already a Michael Scott registered with Equity (the British actors’ union). Looking around, he saw the Humphrey Bogart film The Caine Mutiny (1954) advertised at the local cinema, and picked Caine as his professional name.