Marvel have let fans down before in the movie department, the most notable example is Howard the Duck, but in recent years Marvel have been making excellent movies. the question is, will Marvel fail to make their cinematic movie universe work?
First, let's look into the Marvel cinematic universe phase 2 line up.
Ant Man: I'll be honest, this movie spells out disaster, sure Ant Man is a good comic book character, but I honestly cannot see him translating to the big screen, just the title is a turn off, and unlike most MARVEL characters, Ant Man is not very unique, not to mention, his power (Changing size) makes it so that the only real foes in the movie could be an entire army, a giant monster, or something along those lines, if I wanted to see that I would just watch my Godzilla DVD's.
Guardians of the Galaxy: Again, a good comic book, but I can't see them translating well to the big screen. The main reason is the cast of Guardians of the Galaxy laughably kills any character development that could emotionally reach the audience in 2 hours, namely the characters in the cast I am talking about are Groot and Rocket Raccoon. Everytime the movie tries to create emotional tension, the audience is laughing because some guy is giving an emotional speech... to a tree and a raccoon.
Now look at the rest of the movies, they are all sequels (Heck, it's Iron Man's 2ND sequel) and it's not like the characters weren't developed enough in the original movie.
Now what might people want to see in the cinematic that if MARVEL gets a good legal team, could happen?
The Wolverine: coming out in 2013, The Wolverine looks like its going to make up for the crap Origins put us through. Hugh Jackman looks like he actually gets to play the beast, and if MARVEL and FOX and DISNEY can agree, we may be able to see Wolverine in the Marvel Cinematic universe.
Amazing Spiderman 2: Spiderman has a unique situation with MARVEL and SONY, and we know they are already trying to get him in the universe, so hint at it in Amazing Spiderman 2.
Deadpool: Yeah I know, I know, I'm a stupid fanboy, but just imagine it, MARVEL Cinematic universe phase 3, Doctor Strange, Black Panther, and in the end credits scene from Avengers 3 with Wolverine and Spider Man, there is a heart rate monitor next to a computer that says "Subject: Wade Wilson" and then it goes flat, but then it STARTS TO BEAT AGAIN. And then you hear the doctors talking about replacing his eyes, effectively REMOVING the optic blast that he had in Origins.