Connections

the finale is a shortened edit of the "Swingin' the Jinx Away" routine lifted from the earlier film

Joe's dream of a hula/tap dancing Connie is the "Hola E Pae" part of the Hawaiian medley lifted from the earlier film

excerpt shown

Red references his upcoming MGM movie.

Rags Ragland mentions the title as Skelton reacts to it.

Pinkie Pie says "Who did-done-dood it" at one point.

Mentioned during this episode

a loose remake of the silent film

Title ("I Dood It") is used at the end of the animation; there's also a Red Skelton (who works on "I Dood It") reference, as the "red skeleton".