Around the beginning of the century there were a number of major restoration projects on British castles. Before the outbreak of the First World War work was undertaken at Chepstow, Bodiam, Caernarfon and Tattershal; after the end of the war various major state funded restoration projects occurred in the 1920s with Pembroke, Caerphilly and Goodrich amongst the largest of these. This work typically centred on cutting back the vegetation encroaching on castle ruins, especially ivy, and removing damaged or unstable stonework; castles such as Beaumaris saw their moats cleaned and reflooded. Some castles such as Eilean Donan in Scotland were substantially rebuilt in the inter-war years. The early UK film industry took an interest in castles as potential sets, starting with Ivanhoe filmed at Chepstow Castle in 1913 and starring US leading actor King Baggot.