I want to take The Little Mermaid and remake it. I heard that the original story by the author was actually about how he liked another man, and incorporated that into The Little Mermaid. I want to remake The Little Mermaid into that story, but would it be illegal for me to do so? This is something that I don't intend to make money off of. I know that The Little Mermaid by Hans Christian Andersen is public domain, but I'm really inspired by Disney's version. Would it be wrong for me to take the script of The Little Mermaid and interpret it so it's somehow "my" own story?
Also willing to add more information if some parts don't make sense.