It took me a moment before I figured out that emanuela was referring to the 1974 American film "Young Frankenstein" when she mentioned a scene from "Frankenstein Junior." This, according to the Italian-language site of the IMDB, is because this film was released in Italy in 1975 under the name "Frankenstein Junior." Go figure.

And you're right, cara mia, it is a very funny scene where Feldman gets the brains mixed up.