Hrithik and Barbara set the screen on fire with their salsa moves.
Praising Hrithik after seeing him Kites, the Hollywood director said: "I liked Hrithik Roshan as an actor and dancer in the Indian movie Kites and have seen him dancing in Dhoom 2."
Step Up Revolution is the fourth instalment of dance movie Step Up.
With So You Think You Can Dance star Kathryn McCormick in the lead, the movie will release July 27 in both 2D and 3D formats. It also features Ryan Guzman, Misha Gabriel and Peter Gallagher.
Speer is an American music video director and has done several music videos for Mexican singer Belinda. In June 2007, he directed a three-part video series for the High School Musical star Ashley Tisdale.
"I love music, it brings life in me, it inspires me and when I close my eyes and visualize music, dance is something that completes my vision. Both the entities are inseparable for me and both depict emotions in its respective ways," said Speer.