Harry Potter: 10 Behind The Scenes Secrets That Will Blow Your Mind

10. Creating On-Set Magic For Harry's First Wand

Diagon Alley is the place to be if you're a wizard in need of some school supplies, and no shop is more important than Olivanders where wizards and witches alike collect their wands for the first time.

Since Harry is essentially chosen by a wand that shares its phoenix feather core with that of "he who should not be named", the production team had to make sure enough was done to make this moment feel as magical as possible.

And Being only 11 years old, producers decided to use as many on-set practical effects as they could to help the young actor with his overall reaction to the moment.

A well-placed fan, smoke machine, and overhead lighting were all that were needed to bring this wondrous scene to life at a fraction of the cost of doing the same with the use of virtual effects.

On top of that, some post production magic was used to set the correct tone. The flickering candle seen in frame was isolated and changed to a rate of 120 frames per second. Only then were the production team happy with the eerie environment of Olivanders, making the effect of the overhead light and smoke far more effective than before.