Help, I Shrunk My Friends

To protect his magic objects Otto Leonhard has taught Felix the secret art of shrinking. When Felix's friends almost mess up his date with Melanie, he shrinks them spontaneously to a tenth of their size.
Melanie is a new pupil at the Otto Leonhard High School, and Felix takes a real shine to this newbie, much to the annoyance of Ella and Felix’s gang. They believe that Melanie is responsible for a number of small thefts that have been happening at the school since she arrived. Events take a drastic turn when the class goes on a school trip...