So, what did you want to ask Mark Kermode? Almost everything, it turned out. Yesterday you submitted questions on 3D, the artistic merits of porn, pick n mix, what makes a good review, star chemistry and a whole lot about hair.

This lunchtime between 1 - 2pm, Mark will be online answering as many as he can get through. And this Sunday, the Observer Review will be running an exclusive extract from Mark's new book, as well as – of course – his weekly DVD release round-up.