I refer you all to the film The Sixth Day, starring Arnold Schwarzenegger in a later role (hear me out, this isn't like his turn as Mr Freeze, he was actually good in this role!)
Basically, he plays a pilot working for an extreme sports company in the near future. Technology is mostly the same as now but cloning has reached new levels of sophistication to the point that embryos and cloned humans can be genetically sped up, as it were, to reach adulthood in just a few days, before a trigger stops the rapid growth and normal growth continues. Human cloning is strictly illegal, but animal cloning is now commercial to the point that companies offer clones to replace dead animals, something Arnie's character does early on when his daughter's dog dies. Despite this, Arnie is extremely skeptical of cloning, and his fears are founded when he returns home one day to find an illegal clone of him has taken over his lif, and the clone thinks he is the real deal. With his family unknowing of the clone, and assassins after him, Arnie tries to find out what's going on and basically bust open this conspiracy. The film has some humour in it when the assassins are killed off in various odd ways, yet return as they are all pre-made clones of different actual assassins (also dead).
The plot sounds silly, but it was shown to us in a Religous Studies class a few years ago, and raises some very interesting questions about cloning and the ideas of whether or not a cloned human would have a soul or spirit, or any moral rights. I advise you all see that film, it's worth a look and is actually very interesting. Incidentally, it was named after the Sixth Day of the Bible, when God created mankind after creating the universe, for anyone interested.