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You mentioned three different career paths in your question.
1) Producing movies. Google it. Hard to get into without a lot of money up front. Perhaps you are more wanting to get into a single aspect of helping make a movie, such as special effects or video editing or production design. I'd recommend you look through the different roles that making a movie takes and see if any of them peek your interest.
2-3) If you want to work with news or radio station, you should get the appropriate degree that will help you land a job at a station. If you haven't gone to college yet, you should look to find a college that specializes in TV or Radio, whichever you pick. These colleges will usually have on campus sets or radio stations for you to practice on and get experience.