 General Motors this morning reported its best quarterly sales in more than three years. GM sold nearly 700,000 vehicles in the second quarter of the year, with notable gains in full-size pickup trucks and electric vehicles. The company behind the Redbox DVD rental kiosks outside grocery stores and pharmacies has filed for bankruptcy. Chicken Soup for the Soul Entertainment acquired Redbox two years ago. The publisher of the popular book by that title is not a part of the bankruptcy.