We are not under any illusions here: this video probably only exists because both films contain the word 'fox' in their titles. However, that aside these two very different films work together with unexpected effectiveness. 

The video below uses the trailer soundtrack for the upcoming drama Foxcatcher - which is attracting rave reviews for Steve Carell and Channing Tatum - and combines it with clips from the wacky adaptation of Fantastic Mr Fox. Youtuber Jonathan Hartwig has gone through the effort to carefully sync the images and sounds together. The results are more convincing than your typical mash-up, genre-shifting trailer.

If nothing else, it's another indicator of what a difference a soundtrack can make.

Foxcatcher is due an Irish release in January.