Modern Literary Influences.

In the past, great works of literature have spawned other adaptations. Homer's Odessy, the plays of William Shakespeare and various other great works of literature have inspired other adaptations to film, theatre etc.

What are the modern great works of literature that now influence adaptations?

A comedy film is adapted to the stage.
Legally Blonde the Musical

A TV commercial is adapted to a television series.
The Geico Cavemen

A video game is adapted for film.
Pac Man the movie.

This is truely a golden age.