Garfield: A Tail of Two Kitties (2006)

Overview
Jon and Garfield visit the United Kingdom, where a case of mistaken cat identity finds Garfield ruling over a castle. His reign is soon jeopardized by the nefarious Lord Dargis, who has designs on the estate.
Cast
Bill Murray, Breckin Meyer, Jennifer Love Hewitt, Billy Connolly, Tim Curry, Ian Abercrombie, Roger Rees, Lucy Davis