史実

1. Origins, structure, and basic meaning

• Structure: It is read しじつ. 史 contributes history and 実 fact, forming a word for something that actually happened in history.
• Basic usage: It is used for the historical basis of a film or when comparing legends with records. The example says that a film based on historical facts also contains invented elements.
  • この映画は史実を基にしているが、一部に創作も含まれる。

2. Common pitfalls and similar expressions

• Being fact-based versus fully factual
  • 史実を基にしている means historical facts provide the basis, not that every scene is factual.