The fictional part could be the idea of a giant prehistoric shark like the Meg still existing and causing havoc. It's not something that exists in reality.
The Meg offers a blend of adventure and science fiction. There's the thrill of encountering a massive prehistoric shark and the scientific aspect of dealing with such a creature.
I don't have the exact name of a particular movie. But often, authors draw inspiration from a wide range of movies in the romance genre to shape their writing.
The 'the trench novel' could potentially be about the experiences in the trenches during a war. It might focus on the harsh living conditions, the camaraderie among soldiers, and the horrors of battle.
The Endless Trench is not based on a true story. It's a work of fiction that takes viewers on a made-up journey. The creators used their creativity to build a unique and engaging narrative that doesn't draw from real-life events.