That's the nice things about the Toy Story films and really all of the Pixar films, that both kids and adults find the films enjoyable. It's nice that Pixar is releasing these films in theaters again so the younger kids who never had the chance to see the films in theaters now get that chance, it should make for a nice afternoon.
As far as wearing the 3D glasses for 3 hours, there is a an intermission in between the two films that will give you a break from the glasses. Apparently they will be doing some Toy Story trivia during the half.
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