My brother and I finally had the chance to see Up. Very well paced, it follows Carl Fredricksen from his childhood idolizing 1930s adventurer Charles Muntz, to meeting his future wife Ellie, to his present-day adventure—moving to South America by tying hundreds of balloons to his house.
Of all the Pixar movies I've reviewed on this blog, Up is my favorite. It has something for everyone, but I was most impressed with how much of Carl and Ellie's story was conveyed without dialogue.
UPDATE (06/14/09): I've posted a full review to Crimespree Cinema.