The Little Shop of Horrors
From Jenny Everywhere Wiki
In the 925th Universe, when they were girls, Jenny Over-There (925th Universe) and her cousin Marietta Over-There watched The Little Shop of Horrors together; “[not] even the good one” but the one “with the bad paper mâché plant”. (PROSE: A Very Jenny Over-There Christmas)
Behind the scenes
This refers to the original 1960 horror-comedy The Little Shop of Horrors, later famously adapted into an even more tongue-in-cheek musical. Unlike the musical, the movie is in the public domain. The central antagonist Audrey Junior — the “paper mâché plant” — had previously been referenced in Jenny Over-There: The Nine-Two Five Universe as a real being at an interdimensional party.