The Goonies

The Goonies is a 1985 American adventure–comedy film about a group of boys who live in the "Goon Docks" neighborhood and are attempting to save their homes from demolition, and in doing so, discover an old Spanish map that leads them on an adventure to unearth the long-lost fortune of One-Eyed Willie, a legendary 17th-century pirate.

Youth is represented quite positively in The Goonies as it portrays them as adventurous and ambitious. Their friendship also portrays youth in a positive way as they're loyal and care about each other. 
Youth is also presented negatively as they disobey their parents etc and break into a house but they had good intentions so it doesn't count.