so i think it was 10 years ago and i saw this movie in TV but never thought what was the name 🙁

this is the story :
there was a blonde little boy maybe 10yo that he lives whit his parents and he was only child , but after the while parents realized that their son is sick and he will gonna die soon so they were very upset and cried , they went to some organization or doctor maybe and build a new robot copy of their son . then the son passed out . the robot son was very confused at first , but while after the kindness of the mother made this memory last in his mind , then maybe 2000 years (or more) later that the human was extinct but the robot son was alive ( bcus he wasnt human) then he tooked a piece of her mothers black hair and gave it to aliens and they build his fake mother to make that memory real one more time.

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