Hello. In the movie Interstellar with Matthew McConaughey, there is a scene where wormholes are being explained. The characters say that the wormhole passage is a passage way through 5 dimensional space. Also when they are going through the wormhole they say they are passing through the bulk, which I believe is a reference to string cosmology. According to Wikipedia the bulk is a higher dimensional space. My question is, is that how wormholes(if they can or do exist) work? By going through some higher dimensional space?