sequel and well there be many reason to make em but what go through irwin allen mind to come up with such a boring idea be beyond all logical matter . there be so many open answer to this movie that it be ridiculous . like the poseidon which be a monstruous ship with passenger on be drift on the sea and just michael caine with his miniboat and an evil telly savalas discover the boat . well and at the begin the french marine be circle above the wreck with their helicopter but a a sinking cruiseship be a daily thing and they just fly away . what be i try to say . hmmm and michael caine go on board with sally field and he might pick up everything he see ( diamond ) if there wasn not a telly savalas who be look for weapon on the ship . my god and why in fact be i waste my word on here . it ridiculous and know that both field and caine be involve make you think what go through their mind when read script . certainly not diamond .