I am rather skeptical about a lot of the old golden age games getting turned into movies because quite frankly not much happens in them. They have very shallow story lines, such as princess gets kidnapped and hero goes to save them. But everything else that happens along the way it typical video game mechanics of jumping, puzzle solving, and fighting bad guys.
You mention a lot of great fantasy and scifi movies that have been made as an example, but those were already fairly fleshed out stories which were already good. Some others, such as Guardians of the Galaxy, were mostly just a collection of characters and a universe that they could play around in to make their own story. But the difference between that and a game is it exist in a world where people do "normal" things more akin to real life and not a video game. As most video games involve the hero running down long corridors to find something then possible back tracking to take a fork in the road so they can go down another corridor that was locked and only opens after the player got an item.
People have been playing many of those gold age franchises for a while now and are use to inhabiting the world they are a part of. As you said you have already seen lots of cutscenes and I think a lot of people are the same way. A movie that tries to stay really true to the game would likely end up just being a really long cutscene.
When it comes to movies they need to apply to a wider audience since I don't think the fans of that franchise are likely to be enough of a target audience. Also given that it is a movie with an actual story you would need more motivation with the characters than simply Bowser shows up and kidnaps the princess because it's his thing.
Also Mario is from our world and the Mushroom Kingdom is a fairly magical place. I've seen breakdowns of mario's abilities and quite frankly he is more on par with a superhero breaking bricks with his fist, being able to jump 6 feet tall obstacles, and etc.
Others like Metroid are about the same. Samus runs around a base in a super suit collecting parts to gain access to deeper sections of the base and kill tougher enemies until she defeats the final boss. It's something more akin to an action movie and don't see much new here that hasn't already been done in the dozen of A & B movies done about people trapped in a remote location with alien threat other than it would be in Metroid universe.
Zelda is very much the typical video game mechanic universe. Go to several different locations to collect pieces of the Tri-force and then once combined it breaches Gannon's protection spell so that you can finally face him. Which is fun to do in a game but not so fun to watch in a movie with someone else doing it.
The other limitation is time, games have a lot of time to stretch out the story for a slow build up. But most movies are 90-120 minutes long and I see most game movies as being the same. Getting an epic 3 hours movie like just one of the LOTR films is likely going to be a hard sell to Studios who still likely see games as more for kids and thus want a shorter run time to appeal to families with kids.
So far I've seen several movie adaptations of games and many of them break quite a bit from their game having little in common other than the names. I can't recall a single great video game movie that I've seen or one that actually did really well at the box office.
Here is a list of all the "game" movies that come to mind off the top of my head. Dungeons and Dragons (2 movies), Super Mario Brothers, Blood Rayne, Dungeon Siege (3 Movies), Final Fantasy (Awesome CGI for the time but meh story), Doom, Mortal Kombat (2 movies, 1st one had some good fight scenes), Wing Commander, Resident Evil (OMG I lost count of how many they have made and don't follow either but hear the movie has it's own universe completely divergent from the games), Tomb Raider (2 Movies? Had some Cool action scenes but meh story), Street Fighter (Cult classic for how bad it was and great one liners "For you the day Bison Graced your village was the most important day of your life but for me it was a Tuesday"), and so on.
I know there are likely more but that's all I can recall at this time. None of which I would really want to go and watch again the way I do with a lot of other great movies. Most I saw only once and then promptly let fade from memory.
.
