Nearly 40 years later, Brian De Palma advanced the hybrid form with his 2007 Iraq War thriller Redacted, weaving jihadi websites and Al Jazeera-style footage into a tapestry of "found footage" not unlike the elaborate collage of District 9. By comparison, Kathryn Bigelow's The Hurt Locker seems downright conservative, even though it marks a radical departure from the director's more classically constructed earlier work. To achieve the immersive effect she wanted, Bigelow turned to cinematographer Barry Ackroyd, whose background in documentaries had served him well with such verite-inclined directors as Ken Loach (Ladybird Ladybird) and Paul Greengrass (United 93).

"The reason she got in touch with me was because of United 93. She wanted that sense of immediacy and urgency," explains the d.p., who coached Bigelow in Greengrass' strategy of shooting long, continuous takes and letting the action move from one camera to the next. While the actors played close to the script, the camera crew was encouraged to improvise and avoid ever repeating the same take. "If in the end, the shot is out of focus, that's the equivalent of a beautifully framed shot because it betrays the emotion in it," Ackroyd says.

Each take was a full 500' and the shot was over when the end of the film flapped through the gate.

I wanted a device to let Bruce pass by me a little too close to the camera for focus in the elevator, and he came up with the idea of scooping up some Salmon Mousse, and twirling a little drunkenly past me. This also delayed the action enough for the rest of the crew (same group as before except for Larry H. and the boom woman with a wireless boom mike who rode with me) to exit the elevator next to us. They were timing their elevator to synchronize with ours on the way up to maintain a good RF link to the mixer. If the elevators rose side by side it worked fine, otherwise complete dropout. After exiting, I wanted to get back in front of Bruce so he came up with the Mousse Toss onto the wall thereby backing away from the camera enough to allow me to make a clean exit. There were many other devices like this throughout that I came up with to make the shot flow... I figure the more work everyone else does, and the less work I have to do, the better it will look...

De Palma: I don't like to get into that kind of reading into things. I remember talking to Robin and asking him questions about this. I finally said, look, that wasn't what I was doing when I made the movie; you may see these things but it's beyond me. But I do feel in a sense that I deal with contemporary feminist characters... Most of my women characters are very active, very strong; they dominate the action for the most part. In Sisters all they do is dominate the action. In Dressed To Kill all of the men are practically like women in normal films. So whether they're prostitutes or girls making money on the side by setting up candidates or actresses or newspaper reporters-- to me they are contemporary women and are aggressively pursuing their goals.