This article discussed the best practices with trailers.
In this article
Make a trailer and make it visible
Seems like a no-brainer, but we’ve seen a lot of projects that miss this opportunity. Make a trailer — or any kind of video teaser — and make it easy to find and click on your site! Titles on Vimeo OTT that have a trailer linked to their content and prominently displayed convert about 30% better than those that don’t.
You could cut together a traditional trailer-format video of clips, or you could simply try offering the first 10 minutes of your video free. In some ways, it’s much more descriptive of your content and more likely to draw your audience in.