I'm afraid it is a hoax, according to McAfee:
http://vil.nai.com/vil/virusChar.asp?virus_k=98893
AVERT HOAX Notice!!
NAI Labs AVERT would like to inform you of a new email HOAX.
This email message is just a HOAX, currently we know of no other message that the user will receive about the HOAX as the initial email states. AVERT has not received any report of a user's hard drive being erased for opening the email.
We are advising users who receive the email to delete it and DO NOT pass it on as this is how an email HOAX propagates.
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There is a high level alert for a "flash movie" which is in fact a virus:
http://vil.nai.com/vil/virusSummary.asp?virus_k=99035
It would be a good idea to check that out.