i recently watched all of the original 5 planet of the apes films.
they are all free on youtube!
before that, i had only seen the first one with charleton heston.
and liked that one a lot.
the 4 sequels don't reach the level of greatness as the first film, but man, did i really enjoy this series.
each film was entertaining and engaging in their own way, where they would go in a direct direction while continuing an over-arching story.
there's aspects of it that are dated including the makeup effect work which would be considered cheesy now, and each subsequent sequel would cut the budget making each film look cheaper and cheaper.
but i got past all that because the story and themes they were dealing with were so good and relevant.
this is probably one of my favorite sci-fi series now.
and now i have to watch the new rebooted trilogy, i haven't seen those yet. but i hear good things about them.
(i have seen the tim burton remake before -- which i thought was ok but forgettable.)