Originally Posted by Tulpa
While it had good word of mouth, it also had an ad campaign that laid out what the film was about, and that was the main advantage over JC.
"You saw Iron Man, The Incredible Hulk, Thor, and Captain America, right? Well, they're all in a film together. Go see it!"
Pretty much everyone on Earth knew what the Avengers was about and where the characters came from ("Those comic booky things, right?), even if they didn't have a desire to go see it.
But that's not the only factor... it helps that all these movies from the first Iron Man to Capt. America were all highly entertaining, and as it's been said numerous times, Robert Downey Jr. is simply too cool to make a movie fail
The Avengers is a team work yes, but without him, hmmm I have some doubts... Even the ones not familiar with Iron Man and the marvel world love the character because of RDJ. But credit where credit's due too, The Avengers is a very good and well done movie period, from everyone involved. I particularly like how Chris Evans is shaping his career. I remember the first time I saw Fantastic Four, I never heard of him and thought this guy has a great presence and has the potential to be a big star. He was my favorite character in the weak FF franchise (well there's Jessica Alba too
of course) and he's about the only reason I still want to watch them every once in a while.
John Carter is a different story. No big bankable names attached, a dull title, a questionable ad campaign, and well, simply a lack of interest from the public... a 250 million budget was insane for this production imo, what were they thinking at Disney?? After Prince of Persia and The Sorcerer's Apprentice I would have been more careful...