Foreshadowing is a valuable literary technique a writer can use to create and build suspense that will keep your readers turning the page.

Is foreshadowing a film technique?

It's a literary device where a writer gives a sneaky hint about what's going to happen later in the story. You'll often see foreshadowing at the beginning of a film, or a scene. It helps to build dramatic tension, and makes your viewer more excited about upcoming events in the story.

Is foreshadowing a persuasive technique?

Foreshadowing, as explained in my article, is not simply a literary device, but is an extremely persuasive technique given the way in which it appeals to how human beings think and process information.