In the video above, you’ll see a clip from Harry Potter and the Deathly Hallows: Part I, wherein the Ministry of Magic is assuring the wizarding world that everything is safe and secure. But can they be believed?

Check out some behind-the-scenes footage after the jump to find out what happens next ...

In this video from E!, the three principle stars of the film (Daniel Radcliffe, Rupert Grint and Emma Watson) talk about the scenes they filmed at the Ministry of Magic … and it looks like all heck is breaking loose.

As Harry Potter himself explains, “The Ministry has just fallen under the control of Voldemort and Death Eaters.” Ack! Find out how the three school-age heroes will handle this little wrinkle, and how the actors worked to make movie magic, by watching the clip.

Making any movie is difficult. Making a movie that’s largely driven by magic takes some truly fantastic special effects. When moviegoers hit the theaters (in less than two weeks now!), there’s at least one special effect they aren’t supposed to notice. One actor presented an extremely tough challenge to the make-up team, but you’re not supposed to know.

Harry Melling, who plays chubby bully Dudley Dursley, lost quite a bit of weight before he started filming his short scene for Deathly Hallows … and that presented a serious problem. Dudley is supposed to be chunky, and Melling just didn’t have the bulk. The actor was squeezed into a fat suit that had to look “completely real.“

One of the real magicians who worked the film explained it all in a recent interview with the Los Angeles Times.

“No one will ever appreciate what we did,” Nick Dudman of Warner Brothers explained. “We had to do a complete body suit and prosthetic makeup for him just to make him look that way he did in [Harry Potter and the Order of the Phoenix].”

Daniel Radcliffe also received heavy make-up and prosthetics for a series of scenes in the movie in which he has to look disfigured. The challenge was that the camera follows Radcliffe pretty consistently, but the effects of the spell have to look as though they are slowly wearing off.

Harry Potter and the Deathly Hallows: Part I will be in theaters November 19.