He is a passionate campaigner on green issues, and now Jeremy Irons has backed a campaign to ban lorries from the quaint Oxfordshire town where he lives. The Oscar–winning actor has thrown his weight behind an action group to prevent HGVs using the narrow streets of Watlington as a rat-run between the M40 and M4. The market town—reputedly the smallest in the country—is regularly snarled up with lorries whose drivers, looking for a shortcut between Oxford and Reading, are directed there by their satnavs. …