We can connect with not being seen. Of course for us it is not meant to be literal. We like either for certain people to see us or a general being not just taken for granted by everyone. Having said that, you have to cut the movie a lot of slack and really suspend your disbelief - as much as possible. But because the movie never really explains the "phenomenon", maybe questions like "shouldn't her clothes be visible" and the whole her actually being physically there ... can be left alone.
But again, if you have issues leaving things like that behind you - or if they bug you ... it may not be the best idea to watch the movie. Now leaving all that behind - the movie is an entertaining watch and has quite a few nice things to say. Of course you'll have a love story added to the philosophical aspect of "to be or not to be".
Good performances by everyone involved. Was a bit surprised to see Megan Fox in this one ... especially in a smaller role. But always good to see her - pun intended.
