Jenna is likely the main character in the story. She could be a young girl, a teenager, or even an adult. Since the story is named after her and the black cat, she's probably the one whose experiences are central to the plot.
I don't know what you want to know about Jenna's novel. Please provide more background and context information so that I can better answer your questions.
Not exactly. While it might draw some inspiration from true stories, it's mostly a fictional creation with imaginative elements added to make it more engaging and entertaining for the audience.
It depends. Sometimes movies claim to be based on true events but take creative liberties. Marshall could be inspired by real-life elements, but it might not be a completely accurate account.
Sure was. The movie depicts a true story of a community coming together to overcome a huge tragedy and rebuild their football program. It's inspired by actual events and people.