Cry-Baby is a 1990 film directed by John Waters. It tells the classic story of Star-Crossed Lovers — "Square" Allison Vernon-Williams falls for Wade "Cry-Baby" Walker, leader of the local "drapes" in their small Maryland town — and the upheaval their romance causes between the hillbilly drapes and the uptight squares. Did we mention it's a musical?
Cry-Baby provides examples of the following tropes:
Adaptation Expansion: The stage musical transforms Cry-Baby's would-be girlfriend Lenora into a bona-fide Stalker with a Crush. It also claims that Cry-Baby's parents were sent to the electric chair for being suspected Communist spies and that Allison's grandmother was responsible for it happening. It also includes scenes of Wanda, Pepper and Hatchet-Face in a girl's reform school, while Cry-Baby and Dupree are in jail.
Conveniently an Orphan: Both Allison and Cry-Baby; her parents were killed in two different plane crashes, while his father was the Alphabet Bomber, and was executed in the electric chair, as well as his wife, when she tried to intervene on his behalf.
"Us orphans got special needs!"
Crowd Song: The Whiffles' cross-town performance of the Bunny Hop, "Please Mr. Jailer" and "High School Hellcats".
Cut Song: "Chicken," sung by the Squares. Added as a bonus feature on the director's cut.
Informed Attribute: The Drapes' bad, evil ways. We hear that Hatchet-Face is so tough she coulda eaten nails for breakfast, that Pepper's pregnant but she fights as good as any man, that Milton is "Young, stupid and mean," and the song "High-School Hellcats" says that all of Cry-Baby's gang is "Friends of the devil, twice as mean," but we never see any evidence of this, except the way they dress.
Seemingly Wholesome '50s Girl: Allison eventually develops into one of these. She remains more or less her sweet self, but now she's a delinquent's girlfriend, and more inclined to less conservative outfits.
Separated by the Wall: Allison and Cry-Baby gyrate on opposite sides of the glass barrier in "Please, Mr. Jailer".
Window Love: "Please, Mr. Jailer", a song and dance number which the director says was inspired by peep shows and gloryholes.
Wounded Gazelle Gambit: Lenora pretends to be pregnant with Cry-Baby's child to split him and Allison up, and Baldwin does the same when harassing the drapes at Turkey Point: "They beat me and kicked me; all because I love you."