Go Grease Lightning! The Best Facts About The Film
Not far from the truth
In the scene where Rizzo throws the milkshake at Kenickie, it was supposed to accidentally hit Frenchy, hence the line “sorry French”, but Rizzo was actually furious with Kenickie in real life so decided to drench him in the shake.
It turns out that Rizzo’s hickeys were actually real and they did in fact come from Kenickie during the shoot. Stockard Channing couldn’t help herself but drench him with the strawberry milkshake and they had to go with it.