It is probably hard to portray a character like Black's over 3 hours (Earth time) but reducing some of the romantic subplot would have helped. Hopkins as expected is fine.
A quickie production. Great "direction" from Richard Lester allows the Group to do their thing. The novel screenplay achieves a balance between the music and comedy helped along by a terrific supporting cast.
Brave filmmaking. Although some segments don't work as well as others the plot idea deserves credit and there is always the music providing the backbone.