Key Points Robert Downey Jr. surprised fellow MCU stars with a sweet message on GMA. "Iron Man loves Ironheart," Downey Jr. said. "This goes so deep," Dominique Thorne said.

In "Due Date," an uptight businessman (Robert Downey Jr.) is forced to travel with an oafish, uncouth loudmouth (Zach Galifianakis) to make it home in time for a special event (the birth of a child).

The torch has been officially passed. During a recent Good Morning America interview, Ironheart stars Dominique Thorne and Anthony Ramos were surprised with a video message from Robert Downey Jr ...