If you freeze frame during the scene when they are standing in front of the bed trying to figure out how to undress, you can see that Lucy and Desi both have Ace bandages wrapped around their respective wrists so they aren't injured by the handcuffs.
The background music for Ricky's curtain call--a song entitled "A Romantic Guy, I"--later became the theme for "The Bob Cummings Show."
Will Wright, who appeared as the locksmith, later appeared as the sheriff in Tennessee Bound (1955), in another episode, "Tennessee Bound", as the father of overweight twins, played by sisters Marilyn (1932-2009) and Rosalyn Borden (1932-2003) , who want to go to Hollywood. Additionally, Aaron Spelling (1923-2006) played the gas station attendant.
Lucy makes a joke about not remembering the last movie she saw at the theatre just that it starred someone named Ben and there was a chariot race. She's referring to Ben-Hur: A Tale of the Christ from 1925.