The Crepes of Wrath/References

References/Trivia

References

The episode's title is a play on John Steinbeck's novel "The Grapes of Wrath" (the movie that is based off the novel, is, like The Simpsons, a Fox property).
The two winemakers, Cesar and Ugolin, are named after the peasants from the 1986 French films Jean de Florette and Manon des Sources (Manon of the Springs), according to producer George Meyer.

according to Agnes_Skinner, Seymour's nickname is Spanky.
Adil is from Tirana, Albania.
While Bart is in France he stays at the "Chateau Maison" which means "Castle House" in English.
The donkey's name is Maurice.
Bart has to go get anti-freeze from 14 Voltaire Street.
Bart's piggy bank is covered in bandages, a reference to "Homer's Odyssey", in which Homer breaks it.

Early in the episode, there is some actual dialogue in Albanian between Adil and his family, but later on the dialogue is just gibberish. The dialogue in French is very loosely translated, but correct.
Ugolin whistles the melody of "Alouette" while walking to the fields, but the song, which originates in French-Canada, is not very well known in France and would likely not be known by someone of his class standing.
In later seasons, Agnes Skinner's personality seems vastly different to her kindly demeanor in this episode. In the DVD audio commentary, Matt Groening offers the theory that her current mean streak can be attributed to being a victim of Bart's prank.
Cesar and Ugolin appear 17 years later in The Simpsons Game, In the Episode (level) Medal of Homer. During the gameplay they are your enemies, but in the ending cutscene they are your allies, because you have protected France. As a reward they give you a Royal French Painting with a Flying Hellfish logo. It is a mystery why do they not remember Bart Simpson, or plan to take revenge on him - However, as this section of the game takes place during World War II, it's probably due to the fact that, technically, Bart wasn't even born yet.