re: Blade Runner Sequel
Sorry, but I have to totally disagree with you. In order for this film to really make its money, it needs people to see it more than once. It needs people to buy the DVD and Bluray, and then the merchandise. If the film ends up disappointing us, they lose all the rest of that money. Now days they really need the merchandising, because DVD sales are way down. I am confident that they are counting on us seeing this movie over and over again. One ticket won't get their money back, even if all Blade Runner fans see it. Unfortunately they will also need people that are not fans of the first movie to see it too, and I do worry they may want to expand the base of people to see this one, but I don't think they need to. Inception was a success with almost exactly the same customer base, because people went back over and over again to see it, and saw it on Imax
In theory, I can see where you'd be right. But I think that these days Hollywood makes its money on opening weekend. This is why every movie is preceded by a huge marketing blitz prior to release -- build up hype and excitement, to get butts in seats on opening weekend. Even movies that make their money back are considered failures if they don't go well above that on opening weekend, or maintain a decent haul from opening to second weekend. Repeated viewings naturally help, but the initial goal is to make as much money as possible in the first weekend and figure that, after that point, it's all gravy.
Without regard to any BR sequel or prequel or side story, I don't think they usually count on REPEAT viewings or the DVD/Blu-Ray or other merchandising to make the money. It's opening weekend and that's it. Otherwise your film is a failure, the "franchise" is dead, and that's that. There's also the usual expected 50% drop from Week 1 to Week 2, which is why opening weekend is so critical. The longer the film is out, the less money it takes in per week, so Week 1 is IT. You prime the pump, hope for a relatively small drop-off, and then move on to the next one. Nobody (I don't think, anyway) goes in with expectations of "Ahh, we might have had low turnout this week, but our numbers will stay high from week to week due to repeat viewings!"
I also grew up in the days when Sequels were good things. I remember The Empire Strikes Back, The Road Warrior, The Wrath of Khan, and Aliens. Movies that helped make the whole concept of franchise as we see it today. Good sequels can be made, and it is in their best interest to do so. Especially with a "Franchise" that doesn't appeal to children, but adults, and intelligent thinking adults. The movies in these franchises that didn't make a ton of money were exactly the ones they meddled too much with. They may actually learn from there mistakes. It makes me feel better that Warners has actually no say in this too.
I grew up in that era as well.
That era is long gone, I am sad to say. Back then, the marketing machine wasn't as refined as it is today, so you actually had to rely on your movie being good to make money. This is where the convergence of quality and sequels worked. Sequels couldn't suck or they'd make no money (of course, plenty still did...). Nowadays, though, the marketing machine is so refined and so precise that I don't think anyone cares if a film is worth a damn in terms of quality. It can always be packaged properly via the trailer and pre-release blitz.
Also when fans spoke up about how they hated Jar Jar, his character got a lot less screen time and slightly better lines. The movies got a little bit better too. I am positive that fan feedback is listened to. I agree that the big studios are filled with guys that only care about quantifiable risks and returns on their money, and are not as willing to take chances with new ideas, but it does look like this is not a big studio after all.
I think your example is "damning with faint praise." "Mary, you sweat less than any other fat girl I know."
Fan feedback can help, but can it save a film? I don't think so. The SW prequels are a great example there. Yes, there was less annoying Jar Jar in the subsequent prequels, but that didn't make them good films. Did they improve? Yes, but, at least in my opinion, only in the sense that a dried dog turd is better than a fresh, steaming wet one. Harsh, yes, but that's my view of 'em.
As far as starting with low expectations. I have tried that in the past and it has not really worked. Mainly because if I think too negatively, even if it is good, I already have expectations that taint it, and I look for the bad stuff, instead of trying to look for the good stuff, or just seeing it for what it is. I have written off pretty movies I could have enjoyed as a result. Some of them I luckily went back and gave a second chance to.
Still it might not matter any way. I have been envisioning sequel stories in my head for over 25 years. I already have high expectations. There is no way to take that stuff out of my head. My only option left it to write them and beg them to do stuff better than I have in my head

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Andy
That's cool, man. I mean, whatever works for you, I guess. Me, I tend to prefer the "Wow! That wasn't as crappy as I was expecting!" experience, and I tend to get it if I manage my expectations properly on the front end. I have my own version of mental contortions that I go through in order to take films that aren't that good but are part of my favorite franchises and still watch them without having the rest of the franchised diminished. Not everyone gets that notion either (that a bad film in a franchise can hurt my enjoyment of the other movies, I mean). But anyway, I guess godspeed to you, good sir. I hope you aren't too disappointed by whatever happens here. Personally, I think you'd be better left with your own imagination as the side stories and such. I have a feeling it'd be infinitely better than whatever these suits can come up with...