Although Danny DeVito voiced the famed Dr. Seuss character, it was his co-stars who could barely make it into Sunday’s preem of “Dr. Seuss’ The Lorax.”

Zac Efron and Taylor Swift walked the carpet, and even as they entered the Amphitheater at Universal City, a gathering of fans both young and old swarmed them. Of course, the unspooling of the Universal pic did not take place until its stars made their belated, grand entrance.

Producer Chris Meledandri introduced “The Lorax” and thanked a wide net of people who helped make it happen, including the Universal chairman: “Adam Fogelson’s love for ‘The Lorax’ is a big reason this film got made.”