How would our movie be marketed and distributed?

How would our movie be marketed and distributed? If our movie was to be distributed, we would make our movie a worldwide/ international movie using an international distribution company like Warner bros; a well-known company that has an amazing reputation that also produces and distributes good high budget movies. To market we would publish posters to put up in cinemas internationally and on roadside signs and a big amount of money would be spent on the trailers. Like most successful movies we would create a first trailer with minimal spoilers a few months before the release and closer to that date a longer more spoiling trailer will be released. We will publish these trailers on the internet via social media and on related TV channels around the world. For example, the advert will be broadcast on BBC 3 in the UK as BBC 3 is a channel that airs in the evening and is targeted at the same target market as our movie.