The addition of "best" is a classic "search engine optimization" hack used by non-savvy internet users. It implies a desire for the highest quality version available within their requested format (e.g., "DVDRip" rather than "Cam"). It turns the query into a subjective request rather than a technical one.
Verifique se o filme está disponível em serviços de streaming. A disponibilidade pode variar dependendo da sua localização. The addition of "best" is a classic "search