In his latest film, a stylish espionage whodunit, Steven Soderbergh pushes the metaphor of the "black bag" to the limit, often used as a crutch for cheating, lying and avoiding relationship responsibilities,

So goes much of the crackling patter of “Black Bag,” Steven Soderbergh’s delicious marital drama cloaked as a sleek spy thriller. Lean and taut, the 93-minute “Black Bag” is more a sizzling amuse-bouche than full-course meal, but it’s simmered to perfection.