Question about Stargate, Ra? help me please?

I have a question about Stargate The Movie (1994) . On the other planet, where the Ancient Egyptians were enslaved by the alien/Ra. Some people said that the alien was pretending to be Ra/The Sun God of Egyptian, but some think that the alien was Ra. He was Ra and forced the people to worship him. which one is your opinion? Did the alien create Ra for himself or he was pretending to be Ra to make the people on the planet working for him. I think the alien was Ra, he was the Sun God because he came to earth earlier and create the civilization. so he must have created Ra for himself as well. what do you think?