Many of those old movies don't hold up today.
Production values are superior today.
However, lots of today's movies are really bad too. They make tons of crappy movies nowadays with bad acting and bad direction.
Some of the great old movies still are good and hold up today.
The Billy Jack movies were low budget, B movies, even then.
It rode the wave of the hippie, counter culture movement. It wasn't so much fine cinema. It was a cultural phenomenon.
Born losers was pretty bad. Billy Jack goes to Washington was really bad.
Billy Jack was ok. The best part was the fight in the park. That said, I watched it at least a dozen times, maybe more..
From memory:
You think those kung fu moves are gonna do you any good against all these boys?
BJ- it doesn't look like I really got a choice.
I guess you don't
BJ- then you know what I'm gonna do just for the hell of it? Im going to take this foot and put it on that side of your face. And you know what, there isn't a damn thing you're gonna be able to do to stop me.
Really?
BJ- Really. HiYaaa!