Directed by: Michael Lehmann
Starring: Christian Slater, Winona Ryder, Shannen Doherty, Lisanne Falk
Factual error: Slater had close to a dozen sticks of dynamite on him. At the very least they should have knocked Winona Ryder down, and made her deaf for a few days.
Factual error: After Veronica and JD give Heather the poisoned drink, she falls and shatters the glass table. The way that the glass breaks is not realistic. She doesn't fall far enough to cause the entire top to shatter into tiny pieces. Most likely, the top is strong enough that her body would rest on it.
Revealing mistake: When they show Heather Chandler in her casket in the funeral scene and everyone is praying, she's clearly breathing.
Veronica Sawyer: You're a rebel? You think you're a rebel? You're not a rebel you're fucking psychotic.
J.D.: You say 'toh-may-toe', I say 'toe-mah-toh.
Trivia: The kitchens used in Heather Chandler's and Heather Duke's houses are the same room, but with different lighting and camera angles.
Answer: I think it's one of those "This can't be happening, I must be dreaming" moments. Same as when a character pinches themselves in order to wake up, or they tell someone to pinch them. Veronica can hardly believe what she and JD did.