Answer: Here are some common platforms where you might be able to watch the film:
Step-by-step explanation:
Netflix: In some regions, "Three Billboards Outside Ebbing, Missouri" is available for streaming on Netflix. You can check your local Netflix library to see if it's available in your country.
Amazon Prime Video: Depending on your location, you may be able to stream or rent the movie on Amazon Prime Video. You can search for the film in the Prime Video catalog to check its availability.
Hulu: In the United States, "Three Billboards Outside Ebbing, Missouri" was available for streaming on Hulu. However, please note that the availability may have changed since my knowledge cutoff.
DVD or Blu-ray: You can also check local video rental stores, libraries, or online retailers like Amazon to purchase or rent a physical DVD or Blu-ray copy of the movie.