This is all a matter of opinion obviously, but in general, the works of Shakespeare were meant to be acted out as plays in front of a live audience. The play is clearly the intent and it was designed to be performed live, not read nor watched on a screen. Obviously personal preference will play a factor here, but the play will be more amusing if you see it in person.
This is mainly because the humor is intended for some improvisation, and it is useful to see the audience reaction so that some pieces can be exaggerated or prolonged according to the response. Additionally, taking place in a large auditorium or theater, the motions and actions are typically intended to be aggrandized and exaggerated, which come out more humorous in its intended venue, but can seem silly and overdone on the screen.
This question raises some questions. First, Much Ado About Nothing is a play, not a "book." Second, which movie version is being referred to? At the very least, there is a 1913 silent film...
(The entire section contains 3 answers and 595 words.)