Trivia: As for John Travolta playing Edna Turnblad, that goes back to John Waters having often cast 'Divine' in his movies. 'Harris Glenn Milstead' was an actor best known for performing in drag as 'Divine', John Waters cast him as Edna in the 1988 version. When the Broadway musical was being cast, they cast Harvey Fierstein as Edna Turnblad, and started a tradition of casting a man in the role of the mother, so the movie is just keeping that tradition going.
Motormouth Maybelle: [to Seaweed and Penny.] Oh, so this is love? [She pauses and then smiles.] Well, love is a gift, a lot of people don't remember that. So, you two better brace yourselves for a whole lotta ugly comin' at you from a neverending parade of stupid.
Penny Pingleton: [Totally serious.] So, you've met my mom?
Question: At the end, right at the beginning of the song "Hairspray" at the pageant, Amber turns to Link and whispers, "Look, there's the agents" and it cuts to a few suit-wearing people with clipboards. My mom and I noticed that one of the women among them looked like Ricki Lake. Is it her, in a cameo? It would seem to make sense since she was in the original movie.