User blog comment:Zippertrain85/United Marvel Cinematic Universe/@comment-733050-20150829193943

I didn't know about Whedon's alleged desire to use Doom. I suppose Ultron's Crimson Cowl look was a homage to him as well. It's just as well Marvel sold rights to its more popular properties in the 90s and used its revenue to self-finance its own movies, because I doubt they would've had as much freedom to build the MCU if they hadn't been an indie film studio. But could you imagine if we'd had an X-Men/F4 crossover in the mid-2000s with Galactus vs Dark Phoenix? I can still dream of that someday.