Marketic It's no definitive masterpiece but it's damn close.

Roman Sampson One of the most extraordinary films you will see this year. Take that as you want.

Kien Navarro Exactly the movie you think it is, but not the movie you want it to be.

Rosie Searle It's the kind of movie you'll want to see a second time with someone who hasn't seen it yet, to remember what it was like to watch it for the first time.

joestalin-28266 Why?! That's the first thing that springs to mind when watching this pile of rubbish. Why do we have a guy pretending to be chased and attacked and interacting with sub par CGI creatures from millions of years ago?! It's almost like the subject matter wasn't interesting enough to the producers so they tried to make it more exciting and like a blockbuster movie. This is made for morons. If you have any interest in Dinosaurs or pre-historic creatures in general then go on youtube and check out some actual documentaries that give you information about these amazing creatures. If you like movies like sharknado....then you might enjoy this. Utter, utter none-sense. If you enjoyed this...you are an idiot.

tankace One year after Chased by Dinosaurs Mr Marven goes yet again in a time traveling adventure ,this guy should be pair up with the Doctor ,they would be a great team. To the main subject "Sea Monsters" is a three part series ,in which Nigel goes in to the most dangerous of prehistory in order to show what creatures ones called the ocean their kingdom and some of them are quit odd ,for a lack of a better word. It was a great experience to see this real life leviathans swim around and the way the crew tries to study them was not amazing ,but nevertheless a interesting subject ,which will have you hocked( no pun intended). The reason why I did not score higher is the ending ,which is a cliff hanger and in all honesty, it did not need to be that way ,although if they continue the series and show me what happened it would be better from my point of view. Not that it is diminish the quality of that series , as its on I have seen it about four times ,like with all the Walking with program and still I am going to recommended it for those ,who want to watch a quality documentary, which unfortunately are a thing of a past I fear. Happy bench watch to everyone.

aidan-quinn The most notable difference between the Chased By... series and its Walking With... predecessor is the addition of a live narrator and guide, zoologist Nigel Marven. This show would have scored a lot higher without this addition. Treating it like there was actually a guy interacting with the ancient creatures as in a regular nature documentary was off putting. Nigel Marven does a good job at mimicking these interactions but suspension of disbelief is something which should not be needed to enjoy a factual educational series. This spin off series is known in the US as the 'Chased By' series and in seeking to make the show more engaging it has caused the series to jump the megalodon by trying to inject cheap Crocodile- Hunter style action and theme-park thrills, rather than maintaining the scholarly objectivity of Walking With Dinosaurs' invisible narrator.Some people will enjoy this series a lot and it could inspire some children to get into the field but I worry that the gimmick makes it harder to retain any of the information.

patrick_dunne I really liked this 'documentary.' I saw it on animal Planet a couple nights ago, and I must admit it was very fun! The 'movie' stars Nigel Marvin, who goes exploring in the seven most dangerous and ancient seas. We start off with mere sea scorpions and go up to Megalodons! The movie plays itself as if the monsters were real and an actual threat to the host. Another interesting thing in the movie was that the host walked around and interacted with the animals as if he were Steve Irwin or Jeff Corwin.I actually thought it was thrilling and educational at the same time! If you watch Animal Planet on a regular basis, watch "Chased By Sea Monsters." 8/10