kˈɛnədiz fˈɜːst skɹˈiːn ɹˈoʊl wʌz ɪn pˈiːɾɚ ɡɹˈiːnəwˌeɪz ðə tˈʌls lˈuːpɚ sˈuːtkeɪsᵻz, fˈɑːloʊd baɪ ðə ɹˈoʊl ʌv dʒˈuːliən bˈɛl ɪnðə bˌiːbˌiːsˈiːz kˈeɪmbɹɪdʒ spˈaɪz.
Kennedy's first screen role was in Peter Greenaway's The Tulse Luper Suitcases, followed by the role of Julian Bell in the BBC's Cambridge Spies.