Artificial Intelligence (2001)

What struck me about A.I. is how at the end of the movie, David realized that there were many different replica models of 'David' and he was just the original. The end did not really satisfy me because all he did was ask to have his mommy back but the only problem was that she could only come back for one day. At the end of the day, she went to sleep and David slept for the first time in his 'mecha' life, which was his last sleep...