Some of the script i suspect was written out in order to not offend its censor rating,the Novel mentions several SPALKO scenes that didnt make the film version most notably because i reckon Spielberg didnt want to make her a 'sexy villain' which he explained in the making of book ,which is understandable when you read the scenes that were or were not filmed
(I) Spalko practising sword techniques in front of a fire in her vest, dripping in sweat,Dovchenko watches from view
(II)Spalko reading Macs mind,he asks her what am i thinking of now ''besides the obvious'' then going on to the 'kill you any moment i feel the need', the first line doesn't need further explanation
,also the rabbit experiments could of really helped with character building,making her cold and ruthless to the watcher, a real shame all this was cut.
(III)A scene in the swordfight between Spalko and Mutt,according to the book in mid battle Mutt is temporarily frozen in awe when Spalkos uniform comes undone...(i doubt Spielberg even filmed this)
(IV)The Mutt scene with the piranha fish caught on his hand before the '3 times it drops' can be viewed in the photographic book,one where he is screaming and another which he is joking with Spielberg.(im glad this was left out)