Harbinger

It may seem that calling a Lovecraftian film "fun" is damning with faint praise, but it's the best description of  "Harbinger" from Gearmark Pictures.  The filmmakers know their limitations, budgetary and otherwise, and work within those boundaries to create a well done short film.  The production design in particular is exceedingly well done.  There are a lot of Mythos films that could take some cues from this.