The best thing about this "Super Mario Bros." casting pitch, made by the "Seinfeld" parody account @Seinfeld2000 on Twitter, is that it didn't require any Photoshop or visual manipulation of any kind to make it work.
The tweet, characteristic of the signature @Seinfeld2000 style of inserting "Seinfeld" into any pop culture topic imaginable, depicts both Jerry Seinfeld and George Costanza (Jason Alexander) with the mustaches they experimented with memorably in "Seinfeld" Season 9, Episode 1, "The Butter Shave." The circumstances behind the mustaches in the original "Seinfeld" episode aren't really important — what's important is that in this new context, the facial hair gives both Jerry and George the unmistakable characteristics of Luigi and Mario. As @Seinfeld2000 put it, "cast them in the live action Mario bros."
A "Super Mario Bros." movie starring Jerry Seinfeld and Jason Alexander was probably never even a remote possibility, but this tweet will likely have you wondering if it could have been just wild enough to work — especially if, unlike Chriss Pratt, the boys took the time to develop their character voices.