one star . that all this documentary deserves . i haven not felt this disappoint in watch a movie and let alone a documentary and in quite some time . i be a big fan of the walking with . series and include it nigel marvin spin offs and for all their gleeful fun yet informative information . and although the subject of prehistoric man have never interest me nearly as much a other prehistoric creature and the subject be still interesting and unique to explore . have see all the other doc from the series and i figure i need to see this one as well and especially after see relatively good review in other place . well for those of you who put up a good review of this doc . what be you think . lol . though the information that they be able to get through be interesting and the presentation fail in every other way possible . it have a terrible flow and be incredibly unfocused in what it be try to say ( with information scramble and sometimes out of of place ) and horrible effect ( that include the few moment of cgi and especially the makeup effect ) and and overused mtv style camera effect . speaking of the makeup effect and one reviewer here mention how laughable the scene be when the caveman come across this giant ape and how it look a lot like a 70 man in suit horror movie . well there be plenty of moment just like that be the people portray the ape men look ridiculous and act ridiculous . none of this be help by horrible camera position and composition . the bad part of all be none of it be show in an interesting or dynamic way and or look remotely real . it doesn not even look like it be take seriously . it also lack any emotional punch that the predecessor of the series have . remember the episode in walk with dinosaur of the fate of the ornithochirus ( sp . ) . that episode still get me on the verge of tear every time i watch it . it this sort of engagement with the subject that lack here most of all . when you be more engaged in the subject and it own personal story and even one that be just speculation and you care more about the fact surround it . the only saving grace of this production be the fairly good narration ( at least in the bbc version i saw ) and the music . otherwise and do not bother even rent this one unless you want to have a good laugh ( which i do frequently and but usually follow by roll eye ) . this do not belong on the shelf with the other walking with . doc . and do it make sense to learn that this doc be not produce or directly involve with the same people who do the others in the series . hmmm .