just came out as a Walmart exclusive. I love this movie right down to Gene Hackman as a kick butt preacher.
It's arguable whether this or Airport spawned the disaster movie genre. However, when looking at Airport, that movie was about containing a possible big disaster caused by a despondant suicide bomber on the plane. Poseidon adventure has the characters actually dealing with a big disaster (with some of them dying) so I think the nod has to go to Poseidon.
Lots of extras which were carried over from the DVD special edition so for $15 bucks (thereabout) it's a great buy for lovers of 70's movies and diaaster movies. And it has a great John Williams score which I think was one of his first theatrical scores (not so coincidently he did Work on Irwin Allen shows so he ended up working on the Irwin Allen film)