Comedy duo David Mitchell and Robert Webb have been talking about whether they'd consider returning to the big screen.The pair, who starred together in 2007 comedy Magicians, are up for two awards at the TV Baftas this weekend.When asked whether they would look to the big screen again, Mitchell said: "We would have time for a few months, but there's nothing on the cards, even if we did."I think we would be very tempted to be cast in one...we're very much available for that in a few months time."But I think writing a film sounds incredibly hard, and the chances are nobody would let you make it."So I think we rather make stuff for telly, but we may well change that policy."