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Watching the flying balloon house in Disney/Pixar's 'Up!' of course got my wheels turning thinking 'yeah right' that'd happen in real life, but looks like the folks at National Geographic decided to bust (or should I say pop) that myth!

Time Magazine has compiled their list of the most sad movies for kids.  Topping their list is Bambi and, of course, the scene depicting the death of Bambi's mother.  Old Yeller, E.T. and UP are all in the top 5.  See the full list, and for a good cry, check out this compilation of Sad Disney Movie moments.

On the upcoming National Geographic Channel show "How Hard Can It Be," which will premier this fall, a bunch of crazy dreamers recreate the scene in the animated Disney movie "Up" in which helium-filled party balloons lift a house high in the air. The folks at "Good Morning America" got a sneak peak of how this was done. Read on to check it out.