This is an example of a good idea but one that looks like it was done too many times. This is the boys second movie with Karloff (the other being several years earlier). This one is just not as good.
What is missing here is John Grants script writing. When Grant writes, he remembers that A&C are verbally funny and give them some oral comedy. That is what this film is missing.
Oh, if only the idea had at least gotten some of Grants dialog got into this, the opportunities are here as the boys have several sequences with Boris, but alas, they are not to be. There is plenty of physical comedy.
What is missing here is John Grants script writing. When Grant writes, he remembers that A&C are verbally funny and give them some oral comedy. That is what this film is missing.
Oh, if only the idea had at least gotten some of Grants dialog got into this, the opportunities are here as the boys have several sequences with Boris, but alas, they are not to be. There is plenty of physical comedy.