Dr. Strangelove (1964)

Continuity mistake: Throughout the movie the outside shots of the B 52 show a shadow on the ground. That shadow isn't of a B 52 jet bomber but that of a B 17 WWII prop. It isn't a B 29 either, for the cord of the B 29 wing is thinner than a B 17s; Also, the wings and fuselage are much longer.The most obvious clue is the shape of the B-17 vertical tail- it is unique to the B-17, and much different from that of the B-29.

Major T. J."King" Kong: Well, boys, we got three engines out, we got more holes in us than a horse trader's mule, the radio is gone and we're leaking fuel and if we was flying any lower why we'd need sleigh bells on this thing... But we got one little budge on them Rooskies. At this height why they might harpoon us but they dang sure ain't gonna spot us on no radar screen!

Trivia: Kubrick originally wanted to make this a serious drama. During the screenwriting process he was confronted again and again with situations that were completely truthful and serious, yet he was afraid and audience would laugh at how absurd it is. Such as general Turgeson referring to general Ripper's sending an entire bomb wing to obliterate Russia as "Overextending his authority". He eventually figured out that the only way to write it would be as a comedy.

Question: Was there any significance besides comedy to the very last scene of the movie where Dr. Strangelove stands and proclaims "Mein Fuhrer. I Can Walk." It was pretty funny as is, but I wondered if there was some sort of allusion or other intention to that line.