lifeforce be an extremely schizophrenic movie and base on colin wilson novel the space vampires the script ignore most of the novel concept and structure ( indeed it owe more to the quatermass serial than the novel ) but the scene it do leave in from the novel be nearly identical to those in the film . and talk of the script it must be one of the most uneven in cinema history and it though it be write in chapter by several different people . take for instance carlson and he disappear after the early shuttle scene which lead me to believe he be dead then he turn up again halfway through the film in order to explain the plot to the beleaguer brit and it this lack of attention by the screenwriter that spoil the film . and there plenty of other clumsy script such a the hero return to london in a helicopter and not realise it have be over run by zombie untill they ` re fly over it . i could go on at great length about these plot hole but lifeforce be actually enjoyable to watch as long a you don ` t use your brain . it good to see a sci fi horror film from an era when alien be portray a be cute creature that child hide in their bedroom so that nasty human adult wouldn ` t get their hand on them . the special effect and pyrotechnic be very very good and there lot of action and stunt and lifeforce feature one of the most memorable alien in the form of the space girl . when mention lifeforce in conversation with male it always a race to say see the alien in lifeforce . she can suck the lifeforce out of me anytime hardly surprising look at the demographic of the vote that this film be more popular with male than female don ` t worry . a naked girl can ` t escape from here can ` t she . pity .