This film is respectfully dedicated to the memory of Mr. Elias Howe, who, in 1846, invented the sewing machine.
During the closing credits, you can see Paul McCartney take a bong hit, then proceed to blow smoke into the camera.
While the music is playing at the end (Overture from "Il bariere di Siviglia"), the Beatles are jokingly singing along with it and occasionally reading the credits.
During the opening credits, the sacrificial high priest and his followers are throwing darts at the Beatles on the projection screen. Each dart begins a new credit.
"I Need You" by George Harrison is the only song title credited in the end credits. As this is shown you can hear George say '"I Need You" by George Harrison'.