![](http://illseeanything.com/wp-content/uploads/2019/02/Ex-Proper-Hack-Feat.png)
Post hoc ergo proper hack
This occurs when a filmmaker has an idea that must go in the film, and retcons the whole affair to make it fit. Yep, 'retcons'. It's like having a nonsensical prequel within the film itself.
I'm far too proud of coming up with the name of this rule.