In the ‌film, ​Tommy, played by Mason Thames, dreams of opening for Green Day ⁠after handing the band a ⁠demo tape at a meet-and-greet. While Green Day plays a key role in the story, the ⁠band largely remains off screen, with its music instead featured prominently ​throughout the ‌soundtrack. “You don’t have to be a Green Day fan to love this ​movie. You ⁠can just love this movie and you’ll probably end up liking Green Day after, I hope,” Cool said. Green Day rose to mainstream success with its 1994 album “Dookie” and is known for hits including “Basket Case,” “Good Riddance” and “American Idiot.”