With Labor Day weekend, the summer box office season will have drawn to a close, leaving a trail of winners and losers in its wake.

As a general rule, a picture will break even for a company if it earns more than 2.5 times its production budget in ticket sales. Weighting that guideline as a criterion, along with performance relative to expectations and each film's significance to its production company, let's look at some of the season's biggest disappointments.

Click on the following slideshow to learn which movies from Disney, Twenty-First Century Fox, Comcast, Viacom, and Time Warner came up short, and how one company lost big over the summer stretch.