Verdict: Robert Duvall's finely textured performance in 'Assassination Tango' is a testament to the power of good screen acting to lift a film above the mundane. Yet, the film appears to have been made to satisfy only its maker, or rather its maker's love of tango, than anything of a more deeper ilk. And while the performances are involving, the story is seriously muddled for the most part, which eventually labels this project an undeniably inspired, if occasionally bumpy, ride.