With the ever present ticking of a clock and nerve-wracking machine sounds, this is a taut, nifty disaster thriller, with the cruise ship HMS Britannic sailing to America, unknowingly with 7 bombs scattered aboard, set to explode; they have multiple booby-traps, and the saboteur wants not only money but revenge against the system that in his twisted mind feels slighted him.
The cast is great, with Richard Harris as the head of a demolition team, David Hemmings as his right-hand man, Omar Sharif as the ship's captain, and Anthony Hopkins as the man in charge of finding the bad guy (whose wife and children are aboard the ship); Shirley Knight, Ian Holm, and Roy Kinnear round out the cast.
The direction by Richard Lester, better known for his comedic musical films with The Beatles and not thrillers, is fast paced, with some superb effects; I especially like the suspenseful moments when the demolition crew arrives on the scene, parachuting into the stormy sea.
The screenplay by producer Richard DeKoker is intelligent, raising this film up from the average production in this genre, and the cinematography by Gerry Fisher excellent. The score by Ken Thorne is also good, but mostly one can only hear the tick...tick...tick...of the bomb.
Total running time is 109 minutes.