The Land Before Time (1988)

  Did you know this movie has 14 sequels?  And it is only an hour and 8 minutes long?  That technically makes it a short, not a feature film.  

An orphaned brontosaurus named Littlefoot (Gabriel Damon) travels with four other baby dinosaurs to reach the Great Valley, a rumored land filled with food where their families are waiting for them.  

I must have watched this movie 100 times as a kid.  Happily, it still holds up really well, maybe because it's only 68 minutes.  There's no faffing about.  The animation isn't as crisp as modern works but it still has that Don Bluth magic to it.  I cannot speak to the rest of the sequels for quality, as I am frankly baffled by their existence, but Land Before Time remains a stone-cold classic.  It's currently streaming on Netflix.