The document summarizes models for predicting box office revenues of films. It describes two models: 1) Eliashberg and Sawhney's time-to-decide and time-to-act model which focuses on consumer behavior in deciding to see and acting to see a movie. 2) A "determinant" model which uses factors like genre, ratings, actors to predict revenues through linear regression. It also applies the models to predict revenues for the film "The Dark Knight" and discusses limitations and ways to improve the models.