Longitude Parallel stories: 18th century Harrison builds the marine chronometer for safe navigation at sea; 20th century Gould is obsessed with restoring it. Details Casts Title Longitude Release Date 2000-01-02 Runtime 03 Hours 18 Minutes Genres TV Movie Drama History Production Companies Granada Productions, A+E Studios Production Countries United Kingdom Michael Gambon John Harrison Jeremy Irons Rupert Gould Ian Hart William Harrison (Adult) Andrew Scott John Campbell Bill Nighy Lord Sandwich Gemma Jones Elizabeth Harrison John Wood Sir Edmund Halley Anna Chancellor Muriel Gould Brian Cox Lord Morton Samuel West Nevil Maskelyne Ian McNeice Dr. Bliss Jonathan Coy Adm. Sir Cloudsley Shove? Christopher Hodsol Capt. Ainsley Liam Jennings William Harrison (Young) Peter Vaughan George Graham Nigel Davenport Sir Charles Pelham Tim McInnerny Christopher Irwin John Standing Capt. Proctor Peter Cartwright Army Doctor Stephen Fry Sir Kenelm Digby Daragh O'Malley Capt. Bourke Cliff Parisi Lt. Draper Michael Cochrane Waddington, Gould's soli? Tobias Menzies Halley's Secretary Charles Edwards Lt. Seward Pip Torrens Capt. Lindsay T. P. McKenna Edmund Burke Barbara Leigh-Hunt Dodo Gould Peter-Hugo Daly John Jefferies John Normington Mr. Greene Nicholas Rowe King George Roger Lloyd Pack Capt. Man Trevor Cooper Roger Wills Lucy Akhurst Grace Ingram Peter Penry-Jones Surgeon Mark Tandy Whiston Heike Makatsch Queen Charlotte William Thomas Arthur Mason