Where do people get movie trailers (commercials) from before they are on tv?

Question

I see people post movie trailers on youtube and on their websites, before those trailers are ever on tv. I dont think they are people who work in the industry or anything, so how do they get them before they are on tv?

Answer 1

sometimes other ppl who work rele close to where the commercial is being made and take it to put online, or you could just be missing it  when the commercial comes on lol  

Answer 2

I go to www.tribute.ca and click on Coming Soon.  If a movie has a trailer, it will say so beside the movie title.  There are trailers for movies that are being released almost a year from now!