OK ... I need to add another. I just watched 'Three Headed Shark' <sigh> A new low in stupidity. Parts of it reminded me of Zombie Lake, one of the all time bad movies. Lets see ...
1.) a shark with 3 heads seem to be able to 'flatten' it's body so that it can swim in about 18 inches of water and still 'leap' into the air to 'come down' on a fellow
2.) it is apparently able to 'sink' an entire under water research facility but cannot manage to take out a small motor boat
3.) the research facility is apparently an island and ... also apparently, the 3 headed shark is able to sink islands ... well, technically it is an atol <g>
4.) at one point they are trying to save 'all the folks' on a 'tour boat' that is 4 to 5 times the size of their 'small motor boat'. After they lose several their original group, the 'institute' survivors only manage to save two out of the entire 20+ 'tourists' on the boat.
And that is just the start.
The only redeeming part of the movie is that it has <sigh> Danny Trejo. But I have to wonder if he needed the money ... or he lost a bet to get cast in the movie.
After automatic weapons fire fails to take out the beast, Danny manages to kill it with his machete <chuckle> This is the same shark that was big enough and bad enough to scuttle an under water facility. Unfortunately, Cutting off a head was not enough to kill it. Apparently it was 'playing dead' and waited for a chance to 'get' Danny. Oh, did I mention that once you cut off a head it grows two more? Can you say 'hydra-shark'? I mean WTF, it is supposed to be a Science Fiction ... not Science 'Fantacy' <sigh>