You should obviously be careful with any copyrights, but you could consider using some movie themes during your webcast presentation. With pictures and sounds you can create the perfect set-up and make references to something your audience knows and can revert to while listening to the topic of your presentation.
For example while reflecting back on certain matters that occurred in the past an considering what will need to happen in the future a reference to the “Back to the future” movie may be appropriate. Other future oriented movies may also for a great backdrop for your presentation. Movies about the wild-west, fantasy, Wall street may all have nice themes that you can refer to in your presentation and can be used to set a certain tone that you would like to have for your presentation.
