Home / / Kathryn McCormick and Ryan Guzman star in 'Step Up Revolution'. Kathryn McCormick and Ryan Guzman star in 'Step Up Revolution'. Posted By Artz on July 26, 2012 Share: Twitter Facebook Google+ Kathryn McCormick and Ryan Guzman star in ‘Step Up Revolution’. Share this:Tweet Related Posted by Artz Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of new posts by email.