8. Ant-Man Cameo
Another thing people were wishfully hoping for was a cameo from Ant-Man, given that the film has already had test footage shot by Edgar Wright (which looks absolutely fantastic), and if that style and aesthetic has been locked down, then it would be very easy for him to be thrown into a stinger scene at the end of Iron Man 3. Alas, like The Guardians of the Galaxy, though, Ant-Man is nowhere to be seen. There's not even the slightest tease of him, yet given that he's not slated to appear until Phase Three of the MCU in two years time, perhaps we shouldn't at all be surprised at his no-show. Still, it would have been awesome no doubt.