Watched it years ago. According to what I read somewhere, the experiment was done but this film is NOT actually its documentation, but a fake movie made to explain what the experiment was about.It seems that the experiment did work, although the dog only survived a few hours. Personally, I find it hard to believe all this, especially the heart and lungs being revived separatedly.
Such bullshit. I bet that after you watched that you went and started looking up zombies too.
Actually I do believe it's fake. However during cold war it was treaten seriously. It was also one of the inspiration of George Romero to make "Night of the Living Dead".
What possible purpose would a robot with a dogs head have?