Well, as Brian explained, these are Hollywood scriptwriters who made this movie, so in their minds the sell-ability of the story is more important than the truth. You can have an action flick without at least a hint of a love story or sexual tension, but you can't have an action flick with two dudes about to get it on, so the character of Spike became a woman. Oh, Hollywood, why?! XD I think that Spike is going to set fire to the projector. XD