Task: Quantify the valence intensity of the sentence, assigning it a value between 0 (highly negative) and 1 (highly positive), reflecting the emotional tone conveyed.
Sentence: Even the imaginative gore ca n't hide the musty scent of Todd Farmer 's screenplay , which is a simple retread of the 1979 Alien , with a plucky heroine battling a monster loose in a spaceship .
Intensity score: 