Martian Child is a 2007 American comedy-drama film directed by Menno Meyjes and written by David Gerrold based on his 1994 novelette of the same name. The film stars John Cusack as a writer who adopts a strange young boy (Bobby Coleman) who believes himself to be from Mars. The film was theatrically released on November 2, 2007 by New Line Cinema. Wikipedia
David: Dennis, can I just say one last thing about Mars? - which may be strange coming from a Science-Fiction writer - But right now, you and me here, put together entirely of atoms, sitting on this round rock with a core of liquid iron, held down by this force that seems to trouble you, called gravity, all the while spinning around the sun at 67,000 miles an hour and whizzing through the milkyway at 600,000 miles an hour in a universe that very well may be chasing its own tail at the speed of light; And admist all this frantic activity, fully cognisant of our own eminent demise - which is our own pretty way of saying we all know we're gonna die - We reach out to one another. Sometimes for the sake of entity, sometimes for reasons you're not old enough to understand yet, but a lot of the time we just reach out and expect nothing in return. Isn't that strange? Isn't that weird? Isn't that weird enough? The heck do ya need to be from Mars for?