The Fandom Post is reporting that the Detective Conan: Sunflowers of Inferno anime film is available in North America through digital distribution.
The film can be purchased on Amazon in Japanese with English subtitles for $14.99 or rent for $3.99 or the English dub for the same. iTunes has it where both languages are available with rental or purchase for $4.99 or $14.99 respectively. Google Play has it for $3.99 and $12.99 in both languages and Microsoft has it in their store for $4.99 and $14.99, again with both languages.
The story of Detective Conan: Sunflowers of Inferno is described as:
When Sonoko’s grandfather wins the final bid for Van Gogh’s Sunflowers that was long thought to be destroyed, he announces to open an exhibition to display a complete collection of Van Gogh’s Sunflowers. But the excitement is brought even higher when suddenly they discover a calling card warning of an imminent heist left by the infamous thief known as Kid the Phantom Thief.
Source: The Fandom Post