In a world where* a good trailer can be the difference between a hit and a flop, Don LaFontaine was king. He may not be a household name, but his was the voice behind 5000 cinematic trailers pitching movies since 1965. His is a true Hollywood story - he got his break because somebody didn't turn up. There's more here at the BBC and at my Celebrity Deaths Archive.
* LaFontaine began several of his best-known voiceovers with the words "In a world where ..."