But Africa's resourcefulness goes far beyond the mobile phone, and according to Nigerian-American journalist Dayo Olopade, author of forthcoming book "The Bright Continent, " advanced economies can learn a thing or two from Africa's innovative spirit.

CNN: Africa can teach the world to innovate, says author

This, despite the fact that both Thresh (Dayo Okeniyi) and Rue (Amandla Stenberg) are described as having "dark skin" in Suzanne Collins' novel, while Cinna (Lenny Kravitz) is simply described as having short brown hair.

CNN: 'Hunger Games' and Hollywood's racial casting issue