Vicki Hollett, blogger of Learning to Speak 'Merican, has a great site called Simple English Videos. There are tons of great (and short videos) for learning English. These are wonderful mini-lessons and are a great addition to day's objective(s).
In one video, entitled How to Confuse an American, provides five differences between American and British English. Some of the ways include: zed, saying double plus a letter, and saying the day before the month in a date. I think this would be a great addition to a lesson on the differences between the two dialects students often learn. Many of my students learn British English in their home countries and get surprised by the differences when they arrive in the US.
Additionally, these videos have transcripts, so students can watch on their own and follow along by reading. Have you ever used these videos? What is the best way to incorporate videos in the classroom?