I think you're all kssing the reason why I really started this thread... ...what about the goddamn supposed lesbian scene??
I think the supposed lesbian scene has to do with the fact that Typhoid Mary is a really weird character. I've admittedly never read a comic with her in it, but don't take this with a grain of salt. I enjoy being erroneously taken seriously. It's empowering. Typhoid Mary is psycho and, among other things, can seduce men at a superhuman level. Mutant pheremones, or something. They probably tweaked her character to be more bi-sexual for the movie. I don't know if there are many bigger PG-13 draws for teenage boys than lesbian ninjas. Maybe lesbian ninjas fighting zombies on motorcycles.