There's a reason the first Mario movie flopped so bad. It was horrible. It wasn't Mario. Not in the slightest. I remember being so excited for the movie, then when I watched it, I was appalled. They shat all over Nintendo fans' faces with that movie. Also, it just should never have been live action. 3D animation is the way to go for a Mario movie, and it would have to keep the same spirit as the games, instead of trying to be...whatever the hell that other movie was trying to be. Video game movies could succeed, they just need to be done right, and none have been done right thus far. All they'd have to do to make a good Mario movie is use CGI, with a Super Mario Galaxy like character design, and a story along the lines of what we saw in the Mario RPGs. Leave Mario as an almost silent protagonist, as well as Luigi, and Wario and Waluigi if they appear. Have characters like Toad, Toadsworth, Princess Peach, Princess Daisy, Princess Rosalina, Bowser, and Bowser Jr. do most of the talking. Have Pixar make it, working directly with Nintendo to write the story. One of the world's most recognizable characters, in a movie made by one of the world's most beloved 3D animation studios, in a style that fits the IP, with direct involvement from Nintendo to keep things close to the source material? It'd be difficult to screw that up.