InFlight Safety Demo Videos are great for using in class for advanced level learners (or lower levels with L1 subtitles). They have strong context, most students already are familiar with the various messages/commands in their native language.
Here is a handy basic transcript and worksheet for a generic sheet. You might get students preparing a simple presentation and pretending to be a flight attendant! Could be a fun activity, especially if they make it comical like the video....
Also see this hilarious video... or this one.