Host Jimmy Fallon asked Ruffalo if he had heard that many people believe the two actors look alike. After he made a confused expression, Fallon shared a photo of the To All the Boys I’ve Loved Before breakout star.
Fallon then shared a clip of Centineo discussing the comparisons. In the clip, Centineo revealed that casting directors regularly compare him to Ruffalo. “I even think I am Mark Ruffalo and space and time is just a weird thing that we can’t understand,” he joked.
The host pulled out a photo of a teenage Ruffalo, who showed off his braces with a smile. The actor then held up the photo of Centineo to directly compare the two. “Noah, you’re doing way better than me, pal,” he said. “I wish I was you.”
Fallon later prompted him to lie just to show how the machine would react. “Are you currently dressed like a tiny leprechaun?” asked the host. When Ruffalo said yes, the red light on the machine rapidly blinked while the needle quickly moved.
After they confirmed that the machine worked, Fallon moved on to Avengers questions. He first asked if his character, the Hulk, is secretly a shape-shifting alien known as a Skrull. “What? No, Jimmy! I can’t answer that, man,” said the actor. The machine responded by blinking and forcing the needles to move.
Fallon continued with his questions and asked if Bruce Banner and Black Widow get together romantically in the upcoming film. The machine began to go off before Ruffalo could even respond to the question.
After Fallon brought out a Hulk action figure, Ruffalo declared, “I love him.” Fallon then asked the actor if he “had ever played with” himself. When he said that he had not, the machine predicted that he was lying.
For the final question, Fallon asked if everyone who disappeared at the end of Avengers: Infinity War are actually gone. “You know what, Jimmy. I’m out of here,” he said. Ruffalo then snapped his fingers and magically disappeared out of his chair.