More IT companies are asking candidates to provide a video cover letter in addition to traditional resume and portfolio. While in some respects you should adhere to the same rules that govern video job interviews, there are some key differences to remember when you’re planning, recording and submitting a video cover letter. Here’s how to make sure your video cover letter hits all the right notes.

“Think of a video cover letter as a ‘movie trailer,’ and your career as a movie. You want to have your trailer be engaging, inviting and interesting and give just enough information that the recruiter or hiring manager will want to know more — they’ll want to see the entire film, so to speak,” says Chris Brown, vice president of human resources at telecommunications and collaboration solutions company West Corporation.