Great effects can't save a terrible story, but a great story can be forgiven for terrible effects. Black Hole is still my favorite sci-fi film of my childhood because it was the story that sucked me in, not the laser beams. I think the story of Logan's Run was exceptional so can forgive the lackluster portions of the film
Both could use an update/remake as long as they're put in the right hands.
Gahhh... blasphemy!!! Both are as much a product of 70'ies aestethic as story. If remade, they will not be remotely the same thing. Logan's run is a pretty run-of-the-mill story overloaded with 70'ies themes. Namely nuclear holocaust fears and how to deal with them. We don't have those today. Today it would probably be an environmental disaster or even a zombie holocaust. If we do that... why call it Logan's Run? It's also a result of Watergate and the Vietnam war... ie our leaders are nothing but liars. While bad today... not even close to the 70'ies skepticism. Also... plays on 70'ies leftist utopian ideals. Definitely dead in these nouveau-fascist/nationalist times. Not to mention the Nazi eugenics theme which was going stale even in the 70'ies. But I guess makes sense since over-population was one of their main fears. I'd say that Logan's run is impossible to re-make today without turning into utter crap. At least if we want to make it relevant to today's audience. Which we do.
I recall the Planet of the Apes remake which turned out completely toothless because it came out in a time when the civil rights battle was well and truly won. Which is what the film and franchise is a comment on. It's never interesting to beat down an already open door. A film only about special effects is boring. As we found out. I fear Logan's run will be the same.
The Black Hole is equally impossible to re-make today because we don't lose sleep over (pubescent) Existentialist/Sartrian "deep" questions anymore. We're a lot less hyper-cynical today. Back then questioning what the point of our existence, in a children's movie, was completely kosher. That film is incredibly dark. And without it it's not much of a film. Whether or not the ends justifies the means was a question that weighed heavy on people in the Cold War. Today we can all answer it with a resounding, no. Back then it was an interesting conundrum. By today's moral values Reinhardt is pure evil and the film has almost zero tension. Also... with advances in robotics and AI being where they are today, why bother enslaving the crew? Today's audience would wonder why he just doesn't press the autopilot. Nah.. if made today it would just look dumb.
Better to have some novel sci-fi ideas. The world is certainly full of them. With CGI there's almost nothing practical preventing people to make the coolest brainy films for little money, for instance Iron Sky. I'm against remakes that are just the same with updated graphics. They have to be complete re-interpretations for me to be interested. And in practice a completely new idea.