We have watched both the new Indiana Jones film and the latest sequel of National Treasure within a few days of each other, and we realized it's the same movie! Both deal with finding the pre-Columbian lost City of Gold, both deal with older males re-encountering their old true love. Neither is excellent, and the Indiana Jones', albeit all of Harrison's Ford's continuing charm, is pretty violent. But depending on your kids/ages, both may provide fun family time. Never mind that one version of the City of Gold ends up being in Black Hills and the other in Iguassu Falls, which they want us to believe is a series of waterfalls in the Amazon somewhere. They cannot fool this Brazilian. This has been tried before--in James Bond's Moonraker--which I watched as a teen in Brazil. I joined in the general laughter in the theater as James Bond entered the Sugar Loaf cable car, ran behind that mountain (in Rio) to find himself in the Amazon River (5000km or so away, mind you) and then falls off the Iguassu Falls, 7000 km away? I don't think so.
Educational aspects? The Resolute story--and the two desks made from it, one in the White House, one in Buckingham Palace. The nuclear mushroom cloud/testing done is NV is pretty well done. Any others anyone can think of?