secret..the title itself will make one wonder what's all the mystery is all about in this story but the mystery is not all that great the acting is not the strong point in this movie.Mei Kwai Lun is pretty good but Jay Chou is robotic.He had to show all these emotions which he couldn't deliver.I agree he's the music composer and the director of this movie but sadly i wished someone else had acted instead of him since they had such good story to follow through.It comes out as a very sweet story with this romance which one experiences once in a lifetime.the romance definately had its moments and was pretty cute to watch The cinematography is pretty good but it suffers or lacks in other departments which is such a dissapointment.It doesnt explain many things and leaves it to the viewers imagination which should be good but comes out pretty frustrating The music i believe is its strongest point.Its speellbinding to the point that it almost manages to tranfer us there where our leads are walking together.The duel with the piano is among the best in the movie.The end scene especially.I cudn't glue my eyes away as he plays within that background.simply too awesome.By watching the end scene one would want to actually go there and do what he's doing.Giving no heed to the world and just playing. Watch it for the sweet romance and the amazing music that flows through it..you'll enjoy it..:)