N etflix's "Leo" began when Adam Sandler, who cowrote and produced the film (and stars as the titular iguana), watched "Grease" with his kids. Or at least he tried to watch "Grease" with his kids ...

Adam Sandler as the voice of Leo. Image source: Netflix What this coming-of-age movie is really about, though, is the last year of elementary school, and the growing up that it portends.