Synergy refers to two or more entities working together to achieve a greater effect than if they acted independently. It is a marketing strategy used to maximize coverage and impact for a brand. An example is Electronic Arts promoting their FIFA World Cup 2010 game through a partnership with Coke, where Coke cans had codes unlocking FIFA game content, benefiting both companies. Related products from movies and games also create synergy, with audiences interested in one driving interest in the other. Companies release similar products and information simultaneously to concentrate marketing efforts for maximum impact.