Stewie uses the pseudonym of "Tony Dovolani" to write his play. He also uses the name of "Gorgeous Randy Flamethrower" to play dodgeball.
In the final scenes, several bilboard advertisements can be seen featuring stylized versions of an Apple iPhone, a Coca-Cola bottle, and the Tesla Model S in Times Square as the camera pans down.
At the Clam when Brian is talking about his play, he is wearing a tuxedo, complete with shoes. On some occasions when he wears a tux such as in "Brian Sings and Swings", he never wears shoes. The DVD commentary makes a note of the inconsistency.
It took Peter one year to figure out Stuart Little.
Brian stole a line in his play from an episode of Seinfeld.