Watch either The Island or Gattaca:
For Gattaca look at the implications of pre-implantation genetic manipulation. How are these explored in the movie/ What does it have to say about the ethics of such medical practices?
For The Island look at the ethics of cloning. Are these practices that should be under taken?
How would doing this effect the general population? What of the ethics for the clones? What other medical ethical concerns are illistrated?