I'll leave it up to someone else to make this a possible sticky..

simply put, what is most likely happening is that said file is:

1: bogus
2: being supplied by a paid henchman of the MAFIAA to waste your time

this has been a known occurence for over a year now...

to avoid this type of thing, only download files that are hosted by several (hopefully many) users, and also do a bitzi check on said file to make sure its a 'good' one...for smaller files, one host is no biggy, but for a movie...get my point?