Groot, the humanoid tree that appears in the Guardians of the Galaxy franchise in the Marvel Cinematic Universe, is seen throwing major attitude in a still from the trailer in Avengers: Infinity War.
In the TV spot, which was also an integral part of the end credits, Groot is told by Peter Quill (or Star-Lord, played by Chris Pratt) to put his video game away. "I don't want to tell you again," Quill says. To which Groot (voiced by Vin Diesel) gives his usual reply of "I am Groot," but in a mocking tone and with major side-eye. Quill and Drax (Dave Bautista) react in shock, as apparently the translation of that particular declaration is not exactly PG, and scold him for his language.
Although fans call him teen groot, in a Facebook Live stream last May, Guardians director James Gunn revealed that "teen" may not be the right description for this version of the character, who's grown up quite a bit from the baby Groot seen in the second Guardians film. "That's actually adolescent Groot. I would call him tween Groot. We call him adolescent Groot, he's not quite teen Groot yet," said Gunn.
Avengers: Infinity War is directed by the Russo brothers and assembles a large swath of the Marvel universe, including Iron Man (Robert Downey Jr.), Black Panther (Chadwick Boseman), Thor (Chris Hemsworth), Captain America (Chris Evans), Black Widow (Scarlett Johansson) and The Hulk (Mark Ruffalo), as well as a number of stars from the runaway hit Black Panther, such as Danai Gurira, Angela Bassett, Letitia Wright and Winston Duke.