From the ambiguous ending to the aspect ratio, writer/director Paul Schrader gives a masterclass on “transcendental style” in filmmaking in the DVD commentary.
'As Good As It Gets' (1997), is one of my favorite films. A popular and critical success, it received multiple Academy Award nominations including Best Picture. ('Titanic' won the honor that year.)
The DVD commentary for "Little Miss Sunshine" is a trove of useful info for screenwriters. Directors Jonathan Dayton and Valerie Faris and screenwriter Michael Arndt are worth listening to.
Barry Jenkins employs a subtle device to reflect what is happening on the screen; the use of color. He tells the story of Chiron visually, as well as through dialogue.