TVXQ's Yunho has been cast alongside labelmate BoA for the upcoming Hollywood dance film, "Cobu 3D"! Fans began speculating that he was just going to meet BoA on a personal note when he left for Toronto on the 18th, but as it turned out, it was for the "Cobu 3D" filming also. According to info revealed by SM Entertainment on May 20th, Yunho recently headed over to Toronto, Canada in order to take part in the filming as a 'special guest.' BoA tweeted, "Special guest! Yunho.�Such a great guy!" Attached with the tweet are two pictures of the stars posing side by side at the film set. Yunho is well known for his exceptional dance skills so many are of the opinion that he's a perfect fit for the movie. Representatives were also of the belief that since it's none other than BoA leading the film, a top star like Yunho would be the only appropriate guest. Stay tuned for more updates on this exciting film which will hit cinemas in early 2012. Source: Star News via Nate, Newsen via Nate