Yes that will present date a the movie, to be sure. There is a good scene in Tomorrowland, where the Eiffel Tower is splitting in two and about to launch a rocket out of it and the crowd's in the streets all have their smartphones out taking pictures. Technology will date a movie, faster than anything. Look at all of the science fiction movies that have "modern" PC's in the shots. The ones with the CRT display's really date the movie. CRT TV display's do the same thing.