Exactly How Mandy Moore Pulled Off That Freeway Dance Number

If, like me, you’ve ever wondered (and wondered) how that stunning opening scene in La La Land came together, do we have a treat for you.

In this completely absorbing Vanity Fair video, choreographer Mandy Moore breaks down every last cinematic trick (Hidden speakers! Who woulda thunk it?) and compositional choice (exactly how Moore created seamless transitions between the “real world” and the “dancing world”) that made “Another Day of Sun” the sheer movie-musical magic that it is.

If you’re an aspiring choreographer or just musical theatre-obsessed, trust us: This is the best 11 minutes and 59 seconds you’ll spend all day.