Examine four films currently playing at your local theaters or on video (DVD or streaming): a film rated G, a film rated PG, a film rated PG-13, and...

Examine four films currently playing at your local theaters or on video (DVD or streaming): a film rated G, a film rated PG, a film rated PG-13, and a film rated R. What distinguishes a G film from a PG film, what separates a PG from a PG-13, and what differentiates a PG-13 from an R? Are these distinctions very clear?