A report recently circulated that director Joseph Losey heard John Barry's brassy score for Beat Girl, and wanted him for The Criminal (1960), but Barry turned down the gig because he was working on the Peter Sellers Never Let Go movie at the time.
We cannot confirm or deny this but it is on record that Barry & Losey were to work together on the original aborted musical of Brighton Rock in 1964, and eventually did work together on Boom! (1968) so the story could well be true.