Mirrione has had a notable collaboration with director Steven Soderbergh. The two met when Soderbergh attended the opening of Go. About one year later he asked Mirrione to edit Traffic (2000), which earned Mirrione an Oscar. Todd McCarthy characterized the effects of the camerawork and editing, "Soderbergh has given the film tremendous texture as well as a vibrant immediacy through constant handheld operating, mostly using available light, and manipulating the look both in shooting and in the lab. Stephen Mirrione's editing, which gives Traffic a beautifully modulated overall shape, is characterized on a moment-to-moment basis by jump cuts and jagged rhythms. Overall result is far too stylized to call the approach verite, but pic looks far more caught-on-the-run, and therefore far less staged, than all but a few other American films."