OK, looking at Allen’s career:
Allen did a couple of less-funny movies after a series of smash hits ending in Annie Hall, and this is his first pure comedy movie after that excursion? Is that correct?
Anyway, it’s a pretty odd movie: It’s a mockumentary that mixes real documentary footage with new shots aping the style of the 30s about the subject matter.
I remember not particularly liking this when I saw it in the 80s, and I found it even less engrossing now. It’s just not… funny.