One thing I really wanted to draw their attention to is the use of non-verbal cues as a method of characterization. When writing a story, the author has the option of "telling" the reader information, or making the reader solve these things via inference. When creating a play or video, the creator has many more tools, which are often underutilized by inexperienced scriptwriters. The temptation to have a narrator swoop in and reveal all can lead to rather elementary sounding scripts with characters declaring their intentions in long, tedious exposition.
To show students how they could write a script without much dialogue, and instead rely on facial cues and mannerisms, I showed them a Pixar short called Paperman. This Oscar winning short film (like all Pixar shorts) just a great job of demonstrating power of telling a story without dialogue. In five minutes, students were able to generate dozens of descriptions for the lead, along with multiple themes, all based on the non-verbal cues. There were no secrets here; the filmmakers' vision was very clear.
I think as an English teacher, it's easy to forget that while "literature" is often seen as books and novels, this class is really about analysis and communication. Searching for meaning in Beowulf and Macbeth has merit, but for many students, the able to interpret and respond with appropriate social cues may be a more important tasks. They show most communication is non-verbal, making life one long play-without-words.