Apparently feeling Ray Bradbury's original short story of a time-travel safari to dinosaur land didn't go far enough, this extends it about 400% and adds lots of big guns, senseless chases, gruesome deaths and ugly salivating monsters. Along the way it jettisons all logical plot coherence and consistency, leaving plot holes big enough for a TRex to walk through. You'll have lots of time to dwell on these stupidities, since despite all the explosions and screaming, it's all very boring.Someone should go back in time and stop them from making this mess.