We've been showing a number of copyrighted movies in a psychology experiment. I would like to share the movies with a collaborator at the other side of the world, who wants to run an alternative analysis. As our behavioural data is event timing-related and as we've shown the movie in separate clips with some additional overlays it would be best if we just shared the stimulus files directly. We've got a lot of videos with relatively large (GB) individual size.
What are my options? I've got no experience with file sharing, so am not sure what can go wrong here. I don't want to get into legal trouble for uploading them somewhere.