In case you’re interested, I’ve found a fascinating article on the Benjamin Button film and its differences from the short story (you can find it for free through the UofT library):
Ortolano, Scott. “Changing Buttons: Mainstream Culture in Fitzgerald’s “The Curious Case of Benjamin Button” and the 2008 Film Adaptation.” F. Scott Fitzgerald Review 10 (2012): 130-52.
My own interpretation of the two works is, as you’ll remember, very much the opposite. But it’s always good to test your readings against those of other critics. Sometimes that makes you rethink your position, or at least helps you find ways to make your case stronger. Sometimes you simply throw up your hands and say, “okay, but did you actually see the movie!?”