Here is a great video used to introduce bill Gates before his last keynote speech at the Consumer Electronics Show. The video is funny and well done. But I feel it should come with a warning: Don’t try this at home kids! Why? Because it is extraordinarily time-consuming and expensive to put together a video like this. My advice? Most speakers are better off coming up with an interesting speech rather than getting lost in the details of editing a video. So if you have the resources of Microsoft behind you and you are good friends with international celebrities like Gates, then go for the fancy videos. If not, think twice before going to these lengths.
Bill should keep his day job.