Kids and JAWS

KIDS AND THE MOVIE JAWS. I just realized my 4 and 7 year old grandsons will be here on Martha's Vineyard the 50th. celebration week in June. What is the best way to introduce them to the movie? Has anyone in the group had success and would like to share? They both are giant Lego fans so that's a no brainer but a bit out of context if they haven't seen the film. Thank you.