Oh - the title refers to Don Quixote. The lead character says this about Quixote:
Of course, he carried it a bit too far. He thought that every windmill was a giant. That's insane. But, thinking that they might be...I can well imagine that Linnell and Flansburgh would have enjoyed this film a great deal. But I wonder -- when would they have seen it? It was released in 1971... they were 11 and 12 when it came out.
I have to admit that seeing the inside of a 1971 Pathmark grocery story was a nostalgic experience for me.