Steven Soderbergh has a catalogue of great movies, including “Traffic” (2000), “Erin Brockovich” (2000), “Ocean’s 11” (2001) and “The Informant!” (2009). Now, he can add “Contagion” to that list.  The film takes a multi-pronged look at the spread of a virus that kills within days and leaves international healthcare professionals baffled.