Oh, it's the dog days of summer, alright, with only a few notable theatrical releases making their mark on DVD this week. In fact, the top pick this week is 'In a Better World,' director Susanne Bier's treatise on violence, retribution, family, understanding and forgiveness in the modern world, as exemplified by life in a refugee camp in Africa and in a small town in placid Denmark. The movie won this year's Oscar for Best Foreign-language film. From there, we're left with 'Tyler Perry's Madea's Big Happy Family,' more of the same from the prolific playwright-director. But be prepared for September: 'Star Wars' is coming. Read on.