In Anaheim, California, a big event and meeting happens every year. It is called WonderCon. People of all ages come. They come to see all types of fandom. They can learn about games, comics, TV shows, movies, and books.
Thousands of cosplayers also come. They wear costumes and make-up and bring props.
Difficult words: WonderCon (a big meeting where people talk about stories and imagined things), fandom (when you are in a group of people that really like something), cosplay (when people dress up in costumes as their favourite imagined characters), prop (a thing used in a film, TV show or play).
You can watch the original video in the Level 3 section.