 Prince Caspian has over 1 @,@ 500 special effects shots , more than The Lion , the Witch and the Wardrobe 's 800 effects shots , yet the film had less time to complete them . The scale of special effects led Andrew Adamson to base production in the UK , to take advantage of new tax credits . Therefore , it legally qualifies as a British film . This also meant the director only had to walk five minutes from the editing room to supervise the effects . British visual effects companies the Moving Picture Company and Framestore CFC were hired to create the visual effects alongside Weta Digital . Framestore worked on Aslan , Trufflehunter and the door in the air ; Scanline did the River @-@ god ; Weta created the werewolf , the wild bear and Miraz 's castle ; MPC and Escape Studios did the main battle , the tunnel scene , the castle assault , the council scenes and all the other creatures . 
