Lots of unofficial sources call the Marvel Cinematic Universe identified at Earth-199999, but googling hasn't found me what I consider an official source for that, yet.
I don't think Marvel has answered this in any kind of official capacity. They'd only do that if a story (or handbook entry) required a distinction between the movieverse and the rest of the multiverse, and I doubt that's ever come up because the comics about the movieverse are so self-contained.
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Date: 2011-07-23 10:46 am (UTC)(no subject)
Date: 2011-07-25 12:54 am (UTC)(no subject)
Date: 2011-07-23 02:44 pm (UTC)(no subject)
Date: 2011-07-23 02:51 pm (UTC)