I'm A Banana
Potassium-Rich
Successful and good are generally pretty closely related. The Transformers movies are the only recent ones I can think of which were successful despite being dire in pretty much every quantifiable way (except perhaps consistent visual design and SFX quality).
Dude, what are you TALKING about? This kind of stuff has been happening since the dawn of cinema, and I'm sure Brian Goldner would stab a sack full of puppies to have more Hasbro-branded piñatas of awful on those lists.
There's also plenty of listicles like this out there, which show that just as bad movies can be successful, good movies can tank (And lets me mention Iron Giant!). If stabbin' that sack full of puppies would keep Hasbro stuff off this list, Goldner would also be sharpening his knife.
I think everyone would be happy if a D&D movie did that well. I would be astonished if it did. I agree that a D&D movie is inevitable, actually, but that brings us full-circle, back to what I was originally trying to say (whether I conveyed it or not), which was that it would be very hard to get a D&D movie made that actually operated as part of a "multimedia strategy", rather than actively damaging the brand/putting people off, as I kind of feel recent D&D movies have.
So the question now is: can anyone make a good and successful D&D movie?
Man, probably. But if movie execs knew how to do those things at the drop of a hat, they'd just do that all the time. There's just no telling how one gets to that ideal end state. But it's not impossible. The mere idea that a D&D flick born out of multimedia strategy MUST be bad is a supposition without much evidence. The LEGO Movie was born out of that, and it's hilarious. Transformers was no Scorsese, but it delivered giant fighting robots and enough male gaze of Megan Fox for folks who just wanted that for two hours.
Good reason to be skeptical, absolutely, but no real evidence that "bad movie that fails" is a foregone conclusion based on the D&D brand alone.