In the Marvel Cinematic Universe, super-spy and S.H.I.E.L.D. agent extraordinaire Natasha Romanoff — aka Black Widow — has seen her fair share of dangerous assignments. She's teamed up with Iron Man and War Machine, to defeat Whiplash and a legion of Hammer drones, and fought as a card-carrying member of the Avengers, against Loki and a Chitauri invasion force. Next, she'll be re-teaming with Captain America to go up against a formidable force from his past, known as the Winter Soldier. But before then, she's partnering up with the Punisher, in Avengers Confidential: Black Widow & Punisher. All told, the film is a solid effort, punctuated by bouts of vicious and effective action, and complemented by the fan service that it pays to die-hard true believers, making the Blu-ray just heroic enough to warrant a spot on your superhero team's roster.