Scenes of the terrorists parachuting and climbing onboard the cruise ship are taken from the 1972 film Juggernaught.
Some scenes of the passengers gambling and the ship blowing up are lifted from the 1998 film "Deep Rising".
The opening scenes on the dockside - of the band players, dockside workers & people waving goodbye - are all taken from a British film of 1974 named 'Juggernaught'. They were used in a similar bon voyage scene, in this 1999 film too. The graininess of these scenes - from a film made a quarter of a century earlier - sadly stands out in this 1999 movie. The quality/style of film do not match well. Also, the ribbons that can be seen on the dockside in these scenes, thrown from the boat in the 1974 film, cannot actually be seen being thrown from the boat in the newer movie! ,-)