Miraphora Mina had to channel Professor McGonagall when designing the famous Hogwarts letter. Take a look at how the team got into that mindset and how it felt to be creating such an important movie artefact.

As you can see from the video, it is Miraphora's own handwriting that you see in the film with that notable green ink. The team that created the letters learnt the many nuances were required for making this famous movie prop - such as devising the seals at the back of the letters and having to make lighter versions for owls to carry!

"Our days at work on films are sometimes very normal and sometimes a bit bizarre," Miraphora admitted. We can only imagine!

Over the coming weeks and months, we're celebrating the 20th anniversary of Harry Potter and the Philosopher's Stone. Join us at our 20 Years of Movie Magic hub to explore different iconic moments week-on-week.