Here's a five minute short with Lovecraftian themes. A good watch.
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The Shadow Out of Time is a short film based on the HP Lovecraft short story of the same name. The Shadow Out of Time was first published in the June 1936 issue of Astounding Stories.
The Other Gods is the name of a short film based on the HP Lovecraft's story of the same name. It was first published in the November 1933 issue of The Fantasy Fan.
This animated short is based on the HP Lovecraft story "At The Mountains of Madness."
Strange Aeons is a skirmish wargame of Lovecraftian horror. You can get a Strange Aeons demo kit here, and the quick reference sheet for the second edition Strange Aeons here.