The longer the video, the more significant the commitment the viewer must have should they choose to watch it in its entirety.

Long form video is ideally suited for middle and bottom of the funnel marketing, and customer service. These longer videos provide enough runway to educate the prospect, explain a product or service and its benefits. It is long enough to differentiate a solution from a competitor.

Formats for the video could be a storyline, interview, webinar, presentation, training, web series, etc.

An additional benefit of long form video is that it can be chopped into smaller videos for additional distribution. See Content Atomization.