Jay Chou over-exhausted and hurt his back

Jay Chou (???) is working on his directing debut with movie “The Secret That Cannot Be Told,” and seems over-exhausted himself.

Jay Chou, Anthony Wong and Guey Lun Mei

Itís said that Jay has been working 17 hours a day filming the movie, and has caught the flu and also triggered his old back injury.

Seems like the pop-star is taking the movie seriously… but do take care of himself, the movie cannot be produced if he gets too sick.

Jay will be starring in the movie himself, co-starring Hong Kong veteran actor Anthony Wong (???) and rising Taiwan actress Guey Lun Mei (???).