antagonism, "Every once in a while, perhaps as an exercise in humility, Steven Soderbergh makes a truly inexplicable film... A film so amateurish that only the professionalism of some of the actors makes it watchable... It's the kind of film where you need the director telling you what he meant to do and what went wrong and how the actors screwed up and how there was no money for retakes, etc." In Ocean's Twelve (2004), he had actress Julia Roberts play the part of Tess, a character then forced to play a fictionalized version of Roberts. During the production stages of The Girlfriend Experience (2009) he cast adult film star Sasha Grey in the lead role. In Haywire (2011), Soderbergh cast and eventually launched the film career of professional mixed martial arts (MMA) fighter Gina Carano. Soderbergh's Logan Lucky (2017) made reference to his trilogy by alluding to an "Ocean's 7–11", noting the trilogy's influence on the Southern heist film. Soderbergh's films are centered on suspenseful and ambient soundscapes. A primary way he achieves suspenseful soundscapes is by introducing audio before visuals in cut scenes, alerting the viewer of a sudden change in tone. His frequent collaborations with composers Cliff Martinez, David Holmes, and most recently Thomas Newman, provide his films with "the thematic and sonic landscapes into which he inserts his characters." Method Soderbergh's early films—on account of his youth and lack of resources—were primarily filmed on Super 8 and 16 mm film formats. A variety of his feature films have been shot using a diverse range of camera equipment. He filmed all of The Girlfriend Experience (2009) on a Red One camera, which has retailed for $17,500—a relatively inexpensive camera for a movie produced for $1.3 million. Soderbergh filmed the entirety of Unsane (2018) on an iPhone 7 Plus with its 4K digital camera using the app FiLMiC Pro. He filmed with three rotating iPhones using a DJI stabiliser to hold the phone in place. In January 2018, he expressed an interest in filming other productions solely with iPhones going forward. He then filmed the entirety of 2019's High Flying Bird on an iPhone 8. In addition to his directing, he is frequently a screenwriter for his films. Scott Tobias of The A. V. Club has noted his method of experimental filmmaking as "rigorously conceived, like a mathematician working out a byzantine equation". Starting in 2000 with his