In an effort to encourage more digital movie sales, Sony’s new initiative, Vudu Extras+, is letting people who buy movies via Walmart’s online video service share extras like behind-the-scenes footage on Facebook and Twitter. The idea is that if added bonus content is available, people will be willing to pay for it — and happy to share. Sony says 40 percent of people who buy Blu-ray discs usually watch the extras, which is reason enough to offer this new option. Continue reading Sony Launches Shareable Extras to Inspire Movie Purchases