Finally, regarding user engagement, Sonic offers a good illustration. In 2020, the live-action movie Sonic the Hedgehog was a huge worldwide hit, reaching sixth place in global box office revenues for that year. The secret of the movie's huge success was precisely the strength of the global Sonic fan community. We made the movie's character designs public as a pre-release promotion. In response, many fans posted harshly critical comments about the designs on various social media. We listened carefully to these voices and took the criticism seriously, and made major design changes. The result was a marked improvement in fan satisfaction. The fan community became positive influencers for the movie, which spread to the wider public, drawing a big response and driving the huge success of the movie.
https://www.segasammy.co.jp/english/ir/library/pdf/printing_annual/2021/ir_2021_web_5_e.pdf
I find this kinda refreshing and humble for a big corp. They aknowledge that fans were a huge part of the movies success, instead of sweeping all that under the rug and not speak of the first Sonic movie trailer with the old design ever.