Entertainment Weekly featured a film clip from Harry Potter and the Deathly Hallows, Part 2--"a behind-the-scenes look at a key scene from early in the film in which Harry, Ron, and Hermione sneak into Gringotts Bank in search of one of the final Horcruxes containing a piece of Voldemort's soul. (Warning: For those who want to see the film spoiler-free, this clip is not for you.)"
Other behind-the-scenes featurettes were available at io9, "including a new look for Bellatrix Lestrange."