Thinking people have to take a stand as consumers to stop this. We can start easily by refusing to buy drinks in plastic bottles. The next obvious need is to lobby for laws that require those who produce goods in plastic packaging to be responsible for collecting and recycling it (as we did with milk and pop bottles in the old days). This would drive packaging toward non-plastic, biodegradable materials in many cases.
A Plastic Ocean is an adventure documentary shot on more than 20 locations over the past 4 years. Explorers Craig Leeson and Tanya Streeter and a team of international scientists reveal the causes and consequences of plastic pollution and share solutions. Here is a direct video link.