Kurt Loder wrote a good article on the movie, as with all Moore movies they must be taken with a grain of salt. It's standard Moore operating procedure, completely focus on the negative aspects of his subject vs something he thinks is better. The problem is Moore ignores every negative aspect of that, I think the part about Cuba and the British guy sitting in a hospital with his toe in a cup of ice for over 12 hours was amusing. The Canadian woman who had to wait 16 months for joint operation and was prescribed Oxycontin and got addicted to it finally got her operation then had to go on a waiting list for drug addiction....classic government absurdity. It's all about distortion with Moore.
Now, I dont mean it should be taken that American health care system is perfect . It's top notch, best in the world provided you can pay for it, its that paying that is the problem for a sizable number of Americans. There is no perfect health care system despite what Moore tries to sell us which of course is no excuse for us not to demand better of ours but adopting a foreign system that has its own problems isn't a solution either.