"Unsane" debuts at Berlin film festival; movie was completely shot using an Apple iPhone
While Soderbergh was so impressed with the iPhone that he says it will be hard to return to the traditional filmmaking methods, he did say that the handset was too sensitive to vibrations. But whatever drawbacks he faced due to the use of the iPhone were more than made up for thanks to the ease of shooting a movie with the phone. For example, no holes had to be made in the walls to accommodate a camera, and there was no need to have a camera attached to the ceiling.
The actors were also happy to see the iPhone replace the traditional camera. Joshua Leonard, who plays a stalker in the film, says that using the handset enabled the actors to stay in character longer since they didn't have to wait around "for the machine of filmmaking to catch up with the creative impulse." He also noted that since he is used to fans putting their handsets right in his face to take selfies, he didn't feel self-conscious about making a film. Leonard, by the way, can be seen in the picture at the top of this story. He's on the left, with Soderbergh on the right.
"Unsane" is a movie about a woman who leaves leaves the city where she lives to escape her stalker, David. However, she ends up admitted to a mental health facility where David works. The film is one of 400 that was screened at the festival, but it did not make it to the final 19 films battling for the top prize.