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Sebastian is an undisciplined mathematics genius who works in the "cipher bureau" of the British Intelligence. While cracking enemy codes, Sebastian finds time to romance co-worker Rebecca Howard.

Sebastian (1968) streaming availability varies by region. Check Netflix, Prime Video, Disney+, and other major platforms. It may also be available for digital rental or purchase on Amazon, Apple TV, or Vudu.
Sebastian is an undisciplined mathematics genius who works in the "cipher bureau" of the British Intelligence. While cracking enemy codes, Sebastian finds time to romance co-worker Rebecca Howard.
Sebastian (1968) was directed by David Greene. The film is a Drama, Romance production with a runtime of 1h 40m, rated 6.1/10.
Sebastian runs 1h 40m (100 minutes total). Audience rating: 6.1/10 from 12 votes. Genre: Drama, Romance.
Sebastian is rated 6.1/10 by 12 viewers — decent with mixed reception. A good pick for Drama and Romance fans.