Marvel Studios’ “Avengers: Doomsday” has started production.

And to honor the super-heroic moment, Marvel Studios is hosting a livestream of … chairs. Now, mind you, they are director-type chairs with the name of the actors on the back.

The camera is moving down the list of said chairs – so far, they have revealed Chris Hemsworth, returning as Thor; Vanessa Kirby, who plays Sue Storm in the upcoming “Fantastic Four: First Steps” (in theaters this summer); Anthony Mackie, the current Captain America (his “Captain America: Brave New World” opened earlier this year); Letitia Wright (the new Black Panther); recent Oscar nominee Sebastian Stan, who plays Bucky Barnes aka the Winter Soldier (he’ll star in bad guy team-up movie “Thunderbolts” in May); Paul Rudd, who plays Ant-Man in multiple films; Wyatt Russell, who will reprise his “The Falcon and the Winter Soldier” role of John Walker in “Thunderbolts;” Tenoch Huerta Mejía, who...