It's no different on Princess either. The concerts are at least 5 years old and the movies are ones that have been on TV numerous times. Occasionally I see one in the show lounge that hasn't hit the DVD market yet, bit that's rare. We usually stop watching movies at home prior to a cruise so we'll at least have something new to see on vacation.
The days of seeing a new movie on a cruise are long gone since they hit the DVD market much faster than in the past.