Watch Rocksteppy for Free: How to Stream the Movie Online at 123Movies. . Phil and Colin Beverly are two inept small-town brothers with big dreams, and a song-and-dance rock group to take them there. When they learn of a 'performance competition' in Austin, Texas called South by Southwest, they set out on a cross-country journey, followed by a camera crew of student filmmakers who document their quest to the top! The top of what, they have no idea.