 Andrew Adamson described the film as being darker , as it takes place " another 1300 years later , [ and ] Narnia has been oppressed by Telmarines for a large period of that time , so it 's a dirtier , grittier , darker place than the last world was " . He added , " This one is more of a boy 's movie . It 's a harsher world . The villains are human , and that lends a more realistic attitude . " Creatures were designed by veteran horror and monster concept artist Jordu Schell and supervised by Howard Berger , who said that Prince Caspian would be more medieval than The Lion , the Witch and the Wardrobe . Alongside Adamson , Berger 's children critiqued his designs , aiding the process : his son thought the werewolf 's ears were silly , so they were made smaller . 
