Google now officially has new developer documentation for structured data around movie markup. The new documentation is available here and it shows you how to markup your movie lists with structured data so users can explore movies through Google Search.
The announcement. Google announced this on Twitter:
Supported item properties. This new documentation outlines that title of the movie, director of the movie, and an image of the movie are the item properties supported in this markup. Image and name are required, whereas aggregateRating, dateCreated, director and review are recommended but not required. Here are more details:Read Full Article