Corin Nemec was originally the lead actor in this movie, but the former Parker Lewis Can't Lose star was critically injured when a Belizean Coast Guard boat ran into a semi-submerged barge while transporting the crew to set. His leg was decimated and it took multiple blood transfusions to save his life.

Instead, we get Brian Krause, who was once Charles Brady in Sleepwalkers.

He plays Jackson Slate, who has been forced by a local crime lord to dive deep for treasure buried beneath the seas of Belize. He ends up freeing a giant dinosaur who is soon snacking on divers and henchmen with equal aplomb.

There's a great puppet scene with a hatched baby dinosaur, as well as the big bad final boss getting blasted with a bazooka. It's schlocky science fiction with bikinis and jetskis, but honestly, as horrible as the real world is today, this is a pretty decent escape that only lasts 79 minutes.

Going into a movie called Poseidon Rex you'll have naturally low expectations, and right here I assure you they're met!

It tells the story of a series of explosions that have awakened a dormant dinosaur, a "Poseidon Rex". Essentially it's a t-rex that can swim, and may I just begin by saying it looks ruddy awful.

Starring terrible movie veteran Brian Krause we see our big ugly cgi beasty going on a rampage and a rag tag of people forced to stop it right up until an incredibly bad cliched finale.

This is the kind of film that is constantly repeated on the Scyfy channel and why nobody takes that channel even remotely seriously anymore.

The acting is terrible, the sfx are cringe inducing and the plot is about as original a the average slasher movie.

True dire stuff.

The Good:

Meh

The Bad:

Awful cgi

Some laughable acting

Characters are stupidly unrealistic in their behaviour

Creatures size isn't consistent

Things I Learnt From This Movie:

Seeing a dinosaur footprint in 2013 won't shock a person in the slightest

If you find an egg of an unknown large creature, maybe leave it there?!

Scientists are notorious for having beer in their labs fridge and drinking during experiments

The creators clearly could only get the license for one single song!

I found it a really fun dinosaur movie and I'm a fan of films like Sharknado 1, 2, 3, this film fits into the category of So bad it's good. I've seen worst dinosaur movies than this but I thought Poseidon Rex delivered plus I've seen worst CGI monsters in films but come on guys, its just a low budget dinosaur movie