"the unspeakable in pursuit of the inedible" Oscar didn't always worry too much about being accurate, rather than achieving an effect.

Here is a fox meat recipe (from here):

Fox meat is not tender and has a wild taste about it...
I will require that you let the meat lie overnight in salted water with a hint of vinegar in it...
Next day it should be cooked on a low heat for four hours or so or cut in to cubes and cooked in a pressure pot for about an hour...
It makes for a venison stew when done with potatoes and vegetables.
We usually do not fry or BBQ it because it is tough.
Remember that a fox has almost no fat so the meat tends to be dry like deer meat.