Scorpius was walking behind Sarah and Peter, his own arm linked in Amelia's. He liked being close to her. He would have wanted to go to this event, not just for her, but he was also curious about the movie itself.
"Hmm.. he does sort of remind me of my grandfather. He really plays off that pimp cane. I mean, the Slytherin cane." Scorpius laughed briefly, then noticed a young actor. The one who played Draco. "Oh! Ohh, look. It's him. Think I can get his autograph? He played a cool part." Of course maybe he was a bit biased, since it was his father...