you'd like it, and me too, i liked those films that you listed,
yes i kind of you know you mean, the 'genre' you are speaking of, in a any sense, it's a nameless genre for now but has a common theme which is about an unusal human experiences of sorts that narrates like a chronologic tale of those having kind of an inverse disability-type for being tranformed into a super beings of extraordinarias, by some freak accident or otherwise. One such film, (was it phemenonon? about a guy said to have struck by lightening and overnight become a well-known genius doing all this inventions- mostly untilising existing technology to grow crops, then at some point all found out it he's got a brain lesions, a form of tumour. the film was believable! while we know its not factual i have to see it again to refresh)
I really liked those kinds of 'high-end dramas with an innovative flights of fantasy which is not normally found in today's literatures or films.
K-Pax is another interesting one.
cheers