"So it eventually became a question of WHEN they were going to make a movie"

This quote by Paul M. Glaser recommends that the concept of making a movie had been discussed for some time, and the focus had moved from whether to make a movie to when the motion picture would be made. This suggests that the decision to make a film had actually already been made, and the only thing delegated choose was when the film would be made. It might be analyzed as an indication of progress, as the idea of making a movie had actually been accepted and the only thing delegated do was to decide when it would be made. It might also be analyzed as an indication of impatience, as the choice had actually already been made and the only thing left to do was to choose when the motion picture would be made. In either case, it is clear that the concept of making a film had actually been accepted and the focus had actually shifted to when the movie would be made.