The document discusses what the author learned about technologies through constructing an opening film sequence. They learned how to use various computer programs for editing, why certain equipment is used for filming, how to operate filming equipment, and how to use websites like Blogger for planning and research. Specifically, the author learned how to use an HD video camera, tripod, iMac computer programs like iMovie, digital cameras, webcams, and various online software like YouTube, Blogger, Prezi, Scribd, and more. They can now capture footage, edit videos, add titles, music and transitions, upload files online, and embed media on blogs.