New generations should watch this first in SW sequence.
Obi-Wan Kenobi's pow wow with Luke at his home lays out much of the exposition one needs for the story of the Jedi, Darth Vader, Clone Wars, etc.
The Phantom Menace never approaches that in the least, they just dive in head first- alas theirs was a shallow pool.
...top 50 http://www.imdb.com/list/ls056413299/