I don't really know who Shelby Day is in this context as I haven't read the book. But I assume Shelby Day is the author of the novel who has created this story about the lost girl.
Some cable TV channels that focus on automotive or documentary programming might air 'Shelby American: The Carroll Shelby Story'. Check your local listings. Also, some specialized online documentary websites could have it available for viewing.
The character of Thomas Shelby from 'Peaky Blinders' is fictional. However, the show is set in a real historical context, with elements like the post - World War I Birmingham, the gang culture, and the social and political climate of the time being based on real historical research. But Thomas Shelby himself is a creation for the purposes of the TV series.
I'm not familiar with a character named Bronwyn in Adventure Time. It could be a very minor character or a name that is not part of the mainstream Adventure Time canon.
Adventure Time is a fantasy adventure story set in the Land of Ooo. It follows the adventures of Finn the Human and his best friend Jake the Dog as they encounter various magical creatures and go on wild quests.
The story of Adventure Time is a fun and imaginative one. It follows Finn and Jake as they explore a post-apocalyptic world, make friends with unique characters, and face various challenges. There's a lot of humor, heart, and fantasy elements.