This is fabulous and is exactly why we promote mobile movies within our dedicated Column on TheAppWhisperer, edited by Donna Donato. The Sundance Film Festival is known for showcasing more experimental films, but none more so than transgender prostitute movie Tangerine, shot almost entirely with the iPhone 5S. Sean Baker’s comedy drama follows a trans woman on a Christmas Eve hunt for the Hollywood pimp who left her heartbroken. But while the film itself is surprising and fascinating, so are the means with which it was made. Although many amateur films have used iPhone cameras, Tangerine is believed to be the first Sundance movie shot in full with an Apple…