I just watched the movie The Island. Spoilers below.
The movie is about a govt-funded lab that does therapeutic cloning. It had agreed to follow ethical guidelines with the clones, but it got better results by violating them, and it kept its violations super-secret.
The lab chief talks about how he is going to find a cure for leukemia and is accused of playing God. When someone threatens to expose what he is doing to the public, he hires a professional hit man. When it turns out that human lives are being created and destroyed even when there is no likelihood of saving anyone, even the hit man cannot take it anymore, and refuses to do any more killing for the lab.
The movie is mainly a futuristic action movie, but it also makes a strong statement against embryonic stem cell research and therapeutic cloning. I am surprised that it hasn't generated more political controversy.