for sci fan this will be good than anything likely to be run on tv at any give time while that about the best you can say of it . good point while repartee and sense of humour be less dull than usual in such movie and the plot be coherent and doesn not use any magical mystical revelation . bad point while the writer try to do good science but it fall down in direction and production ( eg and a rock drilling mole use superheated rock drill equipment break surface underwater with nary a bubble or boil cauldron to be see ) and the character be cliché and the plot unfolding be pretty stock standard . ok for a too tire to do anything else type even while but do not expect any major edification or even talk point really .