The only way to work out on this political ambiguity!
Metadata usually hide information that can embarrassingly lead to revelation of secrets resulting in leakage of business deals, hidden agendas and other crucial information, and hence a danger of exposing secrets which can be very costly!
It is known that (I will not put refs for now) even for reputable companies with server-based metadata removal, 10% of all information (provided they are in electronic form) going out of company server have metadata.
Metadata can reveal how an electronic file was created. Metadata for example can tell you whether this video was taken continuously from one place or just a combination of parts taken from different places in different times. It provides plenty of other information as well.
"One of the factors that distinguishes electronic documents from their paper counterparts and contributes to the complexity of electronic document records management is that electronically stored data is accompanied by metadata. Metadata "describes" the underlying data. It may include information such as what language it’s written in; where the data is stored; number of characters, pages and words; what tools were used to create it; when the data was created/modified and by whom." Reference: (E-discovery: What does your metadata reveal? : Municipal Association of SC)
I'm certain for large percentage, that this video is a forgery. The only way to clear this dilemma is to work it the clever way by extracting the meta information associated with the video file!
I'm convinced that there is little chance for people (who may also be not intelligent enough) who created this video to have ever thought of the meta info hidden in the file. And because the video is posted on internet, that means they cannot take it all back in order to remove metadata. Metadata can be extracted by just executing a small piece of code in the command prompt.
Yes, information should be submitted to the court as an evidence or let some geek do it before the public in the court so that everyone can witness!
Alternatively: Extract images from a video, then get EXIF (exchangeable image file) to analyze.