Pedro Pascal and Vanessa Kirby, whose recent flirtatious behavior has raised eyebrows, are just two of Hollywood's stars who have sparked romance rumors from public appearances.

First Steps’ starring Pedro Pascal and Vanessa Kirby opened with an impressive collection and experienced a significant dip on the first Monday.

Vanessa Kirby and Pedro Pascal star as married couple Reed Richards and Sue Storm in 'The Fantastic Four: The First Steps.' The duo reveal their characters' wedding song and how they grew close amid filming the latest Marvel film.

Pascal's seeming overnight success popped off in season 4 of Game of Thrones, in which he played the Dornish Prince Oberyn Martell, the "Red Viper," who meets a particularly gruesome demise, even by Westerosian standards.

Marvel’s First Family — as embodied by the quartet of stars Pedro Pascal, Vanessa Kirby, Joseph Quinn and Ebon Moss-Bachrach — was in attendance at the world premiere for The Fantastic Four: First Steps, held at Los Angeles’ Dorothy Chandler Pavilion on Monday.

Split into two teams, they started off competitively, like when Joseph and Ebon had to guess what Pedro's character in Buffy the Vampire Slayer was up to. Or when Pedro and Vanessa had to guess which song Joseph played as Eddie in the Upside Down on Stranger Things.

Pedro Pascal's The Fantastic Four may have already hinted at this terrifying villain's inevitable appearance in Secret Wars.