I Would Think They Are Short Because Of All The Cost Involved. They Filmed In Quite A Few Different Places, The Ones I Know Of Are Hawaii, Gulf Of Mexico, Off Of California, And The Carribean. You Really Have A Different Respect For The Sea And Its Creatures After You See It. It Is A Great Thing To See. At Our Imax They Have A 55 Gallon Reef Tank In The Lobby And After The Movie We Walked Out And Saw The Tank And It Looked Soooo Small. The Movie Is 3-d And At The Beginning There Are A Whole Bunch Of Jellyfish Swimming Towards You And It Looks Like They Are Right On Top Of You. It Is A Very Cool Experience.