Wes points to an interesting piece:

Only four days after Kubrick turned in the final cut of EWS to Warner Brothers, he was ?found? dead by his wife. He had no heart trouble, and wasn?t ill before his sudden and shockingly unexpected death. Perhaps a clue into the nature of his death is the fact that it occurred precisely 666 days prior to the first day of the year in which his most famous film occurs — 2001: A Space Odyssey.

Full Story: the Kentroversy Papers.

(via Mutato Nomine).