I Capture the Castle You can't choose who you fall in love with A love story set in 1930s England that follows 17-year-old Cassandra Mortmain, and the fortunes of her eccentric family, struggling to survive in a decaying English castle. Based on Dodie Smith's 1948 novel with the same name. Details Casts Galleries Posters Title I Capture the Castle Release Date 2003-05-09 Runtime 01 Hours 53 Minutes Genres Drama Romance Production Companies Take 3 Partnership, Trademark Films, Isle of Man Film Commission, BBC Production Countries United Kingdom Romola Garai... Cassandra Mortmain... Rose Byrne... Rose Mortmain... Tara Fitzgerald... Topaz Mortmain... Bill Nighy... James Mortmain... Henry Thomas... Simon Cotton... Henry Cavill... Stephen Colley... Marc Blucas... Neil Cotton... Sinéad Cusack... Mrs Cotton... Joe Sowerbutts... Thomas... Sophie Stuckey... Cassandra (aged 7)... David Bamber... Vicar... James Faulkner... Aubrey Fox-Cotton... Sarah Woodward... Leda Fox-Cotton... Dolly Wells... Fur Department Vendeuse... James Warrior... Station Master... Christopher Ettridge... Station Bystander... Helena Little... Mother... Florence Jones... Rose (aged 10)... Harrison Ward... Thomas (aged 4)... Jean Warren... Waitress in Café... Bernadette Windsor... Girl in Café... Original Size (1920x1080) Original Size (666x1000) Original Size (500x750) Original Size (666x1000)