https://www.pcgamer.com/neill-blomkamps-anthem-short-is-out-now/

Neill Blomkamp's Anthem short was only teased and subsequently announced a few days ago, but it's already out now. Conviction—An Anthem Story is set decades before the game, introducing new characters and a new story. Check it out above. 

So… that seemed a lot more like a trailer than a short film. There were some flashy moments amid the loosely connected scenes, but it wasn't quite what I was expecting. Perhaps this is just a precursor to a more coherent film. BioWare and EA haven't said anything to that effect, but Blomkamp has teased that it might be the start of something larger.