YET ANOTHER SUMMER SEQUEL, Step Up Revolution is the fourth in the Step Up franchise, which has been churning out steadily-declining dance movies every two years-- with 2006's Step Up (opened $20M), then Step Up 2 the Streets in 2008 ($18M), and Step Up 3D in 2010 ($15M). If the history is any indication, this one will be the least successful to date, especially considering that Touchstone said "no thanks" this time around (Summit took up the slack). Not that it really matters since they're all pretty much the same, but Step Up Revolution will star So You Think You Can Dance's Kathryn McCormick as the main character Emily, Ryan Guzman as her love interest, and (kind of unbelievably) Peter Gallagher as her father. Set in Miami and centered around a pseudo-class-warfare plotline not unlike West Side Story, Step Up Revolution may make a few bucks at the box office, but we're not holding our breath. Its competition on July 27th is the new Ben Stiller/Vince Vaughn comedy "The Watch," and let's not underestimate the fact that "The Dark Knight Rises" will have just come out the weekend before. We say it has a chance of pulling around $10M opening weekend, but we're optimists.