Diary of a Wimpy Kid and its sequel Rodrick Rules feature lots of pranks and jokes. But which jokes are funny and whic are hurtful? The movie trailers show some of both. In an interview. Zachary Gordon, the star of the movies, talks about humor, his Jewish heritage, and his upcoming bar mitzvah. His stories and the trailers provide material for discussion about the difference between humor that embarrasses and humor that entertains. Writing Purim Grammen offers the opportunity to use humor wisely.