St Werburgh’s Anglican Church has stood in Derby’s Friar Gate for over four centuries – Samuel Johnson was married in the old chancel, before the church was enlarged for a growing population. But the demographics changed, the congregation dwindled and in 1990 it was declared redundant. Now in the care of the Churches Conservation Trust, it is usually open for just a few hours on a Saturday. But over Easter (until 12 April) it will open daily – not for liturgical services, but for a touring programme of short films appropriately titled “A Light Shines in the Darkness”.When the trust asked curator Paul Bayley, a former director of projects for Art+Christianity Enquiry, to think of ways of using art to illuminate their empty churches, film seemed the obvio