If you haven't seen English director Michael Winterbottom's film In This World, I urge you to rent the DVD. The story of two Afghani boys who make a hazardous journey from a refugee camp in Pakistan to what they imagine is a better life in London is a powerful cautionary tale. The film explores the desperate lengths to which refugees fleeing political unrest, violence and economic hardship will go, fueled by little more than hope. In This World paints a vivid picture of the dangers refugees frequently endure in their quest for basic human rights and freedoms that we take for granted.The film - which has the look and feel of a documentary - deservedly has won numerous prizes, including the Berlin Film Festival's Golden Bear for Best Film. It may change the way you view refugees and would-be immigrants.