Jimmy Fallon asks the moms and dads at Universal Studios some trivia questions about Harry Potter...they did horribly. "Dad! Come on!"
Before shooting, Emma Watson acted out the scene, so Helena Bonham Carter could mimic her facial expressions during the actual filming. So, technically; This scene is Helena Bonham Carter, pretending to be Emma Watson, pretending to be Helena Bonham Carter, pretending to be Hermione, pretending to be Bellatrix. BELLACEPTION