[antimaie]

I think Up is an amazing movie, Pixar movies never disappoint, and they are simply amazing.

Now, I haven't read this book, but based off of the cover and what you said, I don't think that Disney ripped off this book. In Up, The old man travels with multiple balloons and with a little boy for not a long amount of time in a house. In this book, (I'm assuming) the old man travels in a single hot air balloon by himself for exactly one year. Yes, there are some simliarities, but I don't think that Disney ripped off that bokok.