No it wasn't. That film wrecked the nuclear industry and contributed to climate change as people turned to other carbon rich electricity generating methods.
Three Mile Island and Chernobyl wrecked the nuclear industry. Why blame a movie when the real disasters were enough?
These two were caused by dumb mistakes. Nuclear energy is safe when they are designed to fail safe when errors are made. Mistakes will always be made and we should always fail safe in these situations. That's why it's incredibly expensive to build them.