Up is a charming animated movie for the young and young at heart!  Ed Asner is perfect as the  old curmudgeon whose crusty character is chiseled away little by little, but it is helpful to see how his character became that way over time.  It is this part of the movie that seems to have more adult overtones and may be boring for  younger viewers;however, if they can hold on a little longer,  a myriad of adventures is waiting for them as the tale unfolds leading to a surprising conclusion.  This is a movie well-worth seeing!