Are you going to get copyright permission for those movies? Probably I don't think so. I am sure you are going to upload those pirated movies or movies in DVD which are copyright protected in file sharing websites. In some of these file sharing sites your will get money equivalent to 1000 downloads. Lot of sites and forum are available online today, but nobody does it with complete permission expect big shots like BigFlix and so on.
If you use Adsense ads, your account will be banned. Its not a good idea according to me and here the only source of income is going to be that from the downloads. For this you can opt other forums available online to promote your link instead of going to a new blog. Keep in mind most of the links are deleted if it is in active or any copyright complaint is made. Why don't you consider content writing?