This is essential viewing.
James Rolfe makes a list of some of the worst shark movies, and managed to narrow it down to fucking forty.
Hundreds of millions of years ago, when dinosaurs ruled the land, sharks ruled the sea, from the fin-cleft waves of the surface to the depths of the Marianas Trench. Ruthless...cunning...the perfect predator. Nothing in the world could threaten them...but nothing lasts forever.
[Shot of the K-T meteor entering the atmosphere]
As the surface world met its bitter end, the sharks sought refuge in the thermal fissures of the abyss. Most died. Some survived. And some thrived. Since time immemorial, these prehistoric survivors of the apocalypse have delved deeper and deeper into the earth. Adapting. Evolving. Waiting to return.
[Shot of a volcano erupting]
Scientist, addressing a crowd: The interior of an active volcano is the most inhospitable place in the world. Nothing can survive there.
[Shot of a fin rising out of a lava flow. Soon, more fins rise up behind it.]
Nothing lasts forever.
SHARKANO
edited 4th Oct '13 6:16:17 PM by ABNDT
not sure if you guys know or not, but Nostalgia Critic did a review of this along with Cinema Snob. you can watch it here.
There's going to be a third movie, sometime in 2015. According to IMDB, Daniel Radcliffe is a fan of the franchise and would like to have a cameo.

Sharknado 2: Spinister
Sharknado 2: The Hammerhead Shark of Thor
edited 23rd Jul '13 10:38:19 AM by CobraPrime