MarketWatch: In a world where the Fourth of July weekend is a key date for movie releases, four films are set to battle for this year’s top spot. The competition for moviegoers’ dollars will be stiff. The holiday weekend will see the release of “Magic Mike XXL,” from Time Warner’s Warner Bros., and “Terminator Genisys,” from Viacom’s Paramount Pictures, both of which will try to unseat the No. 1 and No. 2 movies from the previous weekend, “Jurassic World,” from Comcast’s Universal Studios and Disney’s “Inside Out.” All four titles carry $30 million potential for the weekend.