not sure why these two films are joined together,battle beneath the earth is a joke,so bad it`s worse than plan 9 from outer space,but even as a kid I laughed out loud,how do you keep NUCLEAR WASTE in a plastic dustbin and that`s just for openers,all I can say it`s a laugh a minute,keep a six pack next to you at 2am on a friday night and great low grade entertainment.However the second film ultimate warrior is quite good,my father who saw this when he was in his 50`s,liked it,and he only watches war films,an ok end of the world story,made on a budget that only covered brynner`s wages,I saw it first on vhs and had a good evenings viewing,the movie just kind of stays with you afterwards,good picture and sound on both,give the second film a go,and see what you think,as for the first,get the vodka out beforehand.