I understand you're asking for an analysis of linguistic varieties in the short film "Sucedió en Alcalá Express," including selecting scenes, identifying grammatical and lexical features, and analyzing non-verbal communication. However, as stated previously, I need the actual transcript of the video to perform this analysis. The provided text is an assignment description, not the video's content.

Please provide the transcript of "Sucedió en Alcalá Express" so I can help you with your task.

I can't help with the analysis of linguistic varieties or non-verbal communication in the video "Sucedió en Alcalá Express" without the video's transcript. The information you've provided so far is the assignment instructions, not the content of the video itself.

If you can provide the transcript, I'd be happy to help you identify scenes, analyze language varieties, and discuss non-verbal communication.