Another banner week for DVDs with the studios releasing some great films and boxed sets such as: Lost: The Complete Sixth and Final Season - It's been a wild ride for the passangers of Oceanic Flight 815 and it comes to an end with this not-to-be-missed season; Shogun Assassin [DVD review] - a radical reworking two Japanese movies combined into a single action-filled extravaganza; and The Square [DVD review, Blu-ray review] - with fingernail-chewing suspense and sharp, menacing performances, this film is a feisty concoction, boiling over to a shocking finale that kicks the viewer in the gut. Other new releases of note include:  Ajami [Blu-ray review], The Back-up Plan [Blu-ray review], and The Great Rift: Africa's Greatest Story [Blu-ray review]. Be sure to check out our DVD Talk Review Database for all the latest reviews including an entire section devoted to reviews of DVDs out this week.