Translation guide
How to say that something is a true story or based on real events in Japanese.
実話です。
It's a true story.
Literally 'a true story'. Slightly more conversational than 実話.
それ、本当の話？
Is that a true story?
Means 'based on a true story', often used for movies or books.
この映画は実話に基づいています。
This movie is based on a true story.
To indicate that a work of fiction is inspired by real events.
Commonly used in promotional materials for films or novels. をもとにした means 'based on'.
実話をもとにした感動の物語。
A moving story based on a true story.
More formal/literary version of 'based on a true story'. Often seen in written descriptions.
このドラマは実話に基づく。
This drama is based on a true story.
To use 'true story' as a standalone title or caption.
実話 is a noun meaning 'true story' and is slightly more formal or literary. 本当の話 is more conversational and literally means 'a real story'. Both are common, but 実話 is the standard translation for 'true story' in media contexts.