One tiny, loaded word pretty much summed up Wednesday at Cannes: Che. Steven Soderbergh's two-part, four-hour-plus biopic premiered last night to a sprawling range of reactions, most of which seem to embrace the challenging film (and particularly Benicio Del Toro's performance as the title revolutionary) even while doubting the film would ever again screen again in its current version. Soderbergh and star Benicio Del Toro were only slightly defensive when it came time to face the press: