Ditto.
And I share the same thoughts you have. I actually can't remember it being so long, but I guess that just shows how long it's been since I watched it... xD
There are some catchy songs in there too. Also, the duo from Vulgaria (I always thought it was Bulgaria ) who dress up as British gentlemen remind me of Mario and Luigi for some reason, and Grandpa's flying hut reminds me of "Up".
It's quite long, but it's a great movie. I would recommend it.