Are you sure you want to delete this?
Too many words. Only one visual gag. No special reason for being in B&W.
Try pushing the story without words. Imagine you are watching the movie with the center speaker switched off - i.e. no dialogue, just Foleys, grams and the score. Can you still more or less follow the story?
If the answer is no, then the chances are, that you have written a radio play.
Sorry to be yet another negative voice. The basic concept may have legs, but a 'screwball comedy' has to be loaded with visual situation gags that are both a part of the logic of the story and help to describe and define the characters.
And 'screwball comedies' are in colour!Back to Composition...