Ariana Grande's 'Wicked' character Glinda and Ethan Slater's Boq intersect at Shiz University in 'Wicked' Moviegoers are finally getting a peek at Ariana Grande and Ethan Slater's relationship on the big screen.

Longtime friends and iconic “Titanic” co-stars Leonardo DiCaprio and Kate Winslet reunited on Nov. 19 at the Harmony Gold theater in Los Angeles (via People) for a special screening of Winslet’s “Lee,” which opened in theaters earlier this fall. DiCaprio introduced Winslet by calling her “one of the great talents of my generation.” The praise …

During the exchange, Grande gently took hold of Erivo's long, green fingernail (an homage to her Wicked character) and lightly tapped it — seemingly in a gesture of support. The clip has since gone viral. Related: Wicked Spoilers! Ariana Grande Says Film 'Couldn't Have Happened' Without Amazing 'Full-Circle' Cameos (Exclusive)

In “Wicked,” Elphaba and Glinda travel from Shiz University to the Emerald City on a glistening green train to meet the wizard. In real life, Cynthia Erivo and Ariana Grande have traveled much farther and wider and longer — and on airplanes — to promote their hotly anticipated film.

Wicked breaks box office records with Ariana Grande and Cynthia Erivo leading the charge, redefining musicals in Hollywood.

Ariana Grande also shared a series of BTS photos and videos on Wicked’s premiere day, though Slater could only be seen in the background of one image. “Like a handprint on my heart,” she captioned the post,

"To say I’m honored to be a part of this movie is the understatement of the century. I cannot wait for you to see it," the actor wrote