Look for books online that have been made into movies, those with an original movie and remakes will be the most fun.

Ask teens to read the book first, then watch the movie (or movies) and compare. Which was better?
What information was changed or left out in the movie version?

Some great examples include
▫️My Side of the Mountain
▫️The Hunger Games Trilogy
▫️Charlie and the Chocolate Factory
▫️The Fault in Our Stars