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In my basic writing course, I have an assignment where I ask students to produce short trailers for hypothetical movies or video games. I have them use PowerPoint for the assignment, which can be "hacked" to emulate an animation program like Flash but with an easier, more familiar user interface (IMHO). I must remember to have students in my future courses look at this wonderful, freaky, genre-bending remix of Mary Poppins as a model: