In Avengers: Infinity War, you might have noticed Tony Stark had a burner phone specifically for calling Captain America, even though the two weren't (and presumably still aren't) on speaking terms. Cap's number lingers on screen long enough for moviegoers to copy the number down into their own phones, and many called the number (678-136-7092) after seeing the latest installment in the Avengers franchise.
Unfortunately, as you know if you were one of those who decided to call the number, it doesn't actually work. However, according to the Russo Brothers, this was not supposed to be the case. While things like this are usually Easter eggs in Marvel movies, this one was not— the number wasn't chosen, according to Anthony Russo, it was just what the film's producers were given because of Disney's legal department.
"We actually had intended to create a fake voicemail from Steve Rogers," Joe Russo told the Huffington Post. "For the people that left the theater and called that number, they would get a voicemail from Steve Rogers."
It was here that the legal department for Avengers: Infinity War stopped the plans for this Easter egg in its tracks. "We had it all ready to go, but legal took that away from us," Anthony Russo added.
In theaters now, Avengers: Infinity War is directed by Joe and Anthony Russo and stars Robert Downey Jr., Chris Evans, Chris Hemsworth, Mark Ruffalo, Scarlett Johansson, Paul Bettany, Anthony Mackie, Elizabeth Olsen, Tom Holland, Benedict Cumberbatch, Chadwick Boseman, Chris Pratt, Zoe Saldana, Dave Bautista, Bradley Cooper, Vin Diesel, Tom Hiddleston, and Josh Brolin.