Gary Oldman and Daniel Radcliffe chatted over how Oldman’s character, Sirius Black, was initially painted as a villain, however, he later turned out to be a well-wisher of Harry Potter and seemed genuinely kind and warm-hearted towards the titular character. Talking about the same, Oldman said, "I wish I’d had the whole picture. You know, we found out book by book." However, he turned to Daniel Radcliffe feeling that maybe he knew the story beforehand considering he was the lead of the series. But Daniel Radcliffe, in turn, revealed, "I did not. Just Rickman did," referring to the late actor, Alan Rickman, who played the character of Snape. “He had the inside line," said Daniel Radcliffe. Oldman quite surprised, asked, "How did he work that one?" Radcliffe reverted, "He very very early said to Jo [JK Rowling], he was like, I think I need to know what happens. He never told Chris (Columbus). He never told anyone. Chris would literally say to him ‘why are you doing that’ and he would say ‘I’ll tell you later.’"