I'll typically keep an eye on the BitTorrent tracker sites such as The Pirate Bay and btjunkie.org, just to see what's popular day in and day out. It's actually an interesting process, though there can really be a lot of junk to wade through (one way to help with this is to create a Yahoo! Pipe to filter some of the data).
In any case, on June 15 of this year, Rise of the Silver Surfer - the sequel to Fantastic Four - was released in theaters. A day or two before that, the movie was released as a torrent. Since then, with very few exceptions, this movie simply will not go away. With the DVD set for release in about a month, it's now time for the DVD rips to start hitting, so I suspect that we'll start seeing those soon.