Movies can be watched at the theater or at home. Cine is short for cinema.
I’ve never heard “cinephile” used in any other way than simply “movie lover/enthusiast”.
Another word bastardized then. Do you go to the cinema? No? Then you’re not a cinephile (“cinema lover/enthusiast”).
Something came up and I couldn’t go to the movies tonight, though it’s not that big a deal. If Happy Feet, Happily N’ever After and Eragon, which is what I had planned to see, were priorities, I would have seen them before now. They were earmarked as “$5 Tuesday” movies. I did see Happy Feet but fell asleep due to getting up very early that morning, and wanted to try it again.