How could a British comedy starring Ian Carmichael, Terry-Thomas and Alastair Sim could be bad ? In the case of Schools fro Scoundrels, you have the perfect typical old British comedy with wonderful actors.
This is the kind of movie that makes you feel good and I guaranty a lot of laughs while viewing this jewel.
One of the best comedies starring Terry-Thomas I know (another one I recommend is "Make Mine Mink").