Tarantino and Iron Man: did somebody say a billion dollars? Of all the projects mentioned on this list, perhaps this one had the potential to make the most money, given that it combines two very, very popular brands: those of Tarantino and Iron Man, who - these days - is like everyone's favourite superhero. It's also the film on this list that never really got a proper shot, having - as far as we know, anyway - gone further than the "Wouldn't it be cool if...?" stages (though for a while this was poised as a fully-fledged possibility and Tarantino debated whether to make it). Unsure of where to go or what to do with the Iron Man property back in the late 90's, the Fox - who held the rights before they went back to Marvel - approached the director to see if he was interested in potentially directing the movie. It turned out that Tarantino was a fan of Iron Man and that he was interested, but for whatever reason - most of which are largely unknown - the project never amounted to anything. Which is kind of a shame. Yes, the 2008 Iron Man was rather brilliant - and Robert Downey Jr. was inspired casting - but a Quentin Tarantino Marvel film - especially one with Iron Man at the helm - would likely have been bold, crazy and packed to the brim with memorable dialogue cues. Kind of makes you wonder how amazing a Tarantino/Downey Jr. Iron Man film would have been, had these two somehow been teamed together at some point during development. Tarantino also once talked about making a Luke Cage movie (or at least wanting to), but despite his involvement the lesser-known character probably wouldn't have had people clambering into the theatre to the same extent that a Tarantino Iron Man film might've. Like this article? Agree or disagree that these movies could've reached a billion dollars each? Are there any that we missed? Let us know your thoughts in the comments below.