User blog comment:ADour/Official title for Marvel's The Avengers sequel announced!/@comment-4651179-20130721032030/@comment-3317214-20130724003036

I don't believe I said "interconnected". I think the word I used was "expanded" or "universe building". Hear me on every level when I say that you can not deny those phrases.

I know the difference between crossovers and spin-offs. Of course Batman/Superman isn't creating an interconnected universe. Because there's nothing to connect to.

Difference is though, Batman is a pop culture phenomenon. Deadpool may be one of Marvel's most popular characters, but he doesn't leave the comics much. I think he's had 2 appearances on animated shows (one of them, a cameo), and appeared in 1 movie, but in such a vastly different way, that it wasn't Deadpool. Deadpool doesn't have a massive rogues gallery and a city of his own, that are well-known in the real world, where people watch these movies.

I understand that a Batman film following the Batman/Superman movie is a spin-off.

Buddy movies are a reasonable comparison, because Superman/Batman will most likely be a buddy picture.

Well, The Avengers is just as much Iron Man 3 as it is Incredible Hulk 2, etc. It's a crossover. But the Batman/Superman movie is more than just Man of Steel 2. Otherwise, people would still be calling it Man of Steel 2.