This remake of the quaint Ealing comedy caper from 1949 fails to justify its existence. — Towards the beginning of this quaint Scottish comedy by Gillies MacKinnon, a mother complains to her son about the “ungodliness” of using telephones on the Sabbath. “Mother,” the son pleads in response, “we must move with the times.” It’s a throwaway line, but it encompasses the film’s eventful downfall, as…