As Professor Sito relates:
I recall a Disney development exec once complaining to us "What's with all you animators and Film Noir?!" The Kroyers wanted to do Arrow, Brad and Jerry wanted to do Ray Gun. Noir just looks like fun.
And whos Andrew Chesworth? He's a Disney animator with a number of hit films on his resume. And an obvious love of Humphrey Bogart and accompanying femme fatales.