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HARRY Potter star Rupert Grint says he was scared stiff of Alan Rickman while they were filming the hit movies.

Rupert, known to millions as Ron Weasley said: “I was terrified of Alan Rickman [Severus Snape] because he stayed in character all the time. My favourite scenes were those with all the Weasleys and my surrogate mum, Julie Walters.

“It’s only in the last couple of years that I’ve realised how amazing the cast is. In the early days, I just thought of them as a load of old people – mostly friendly, sometimes intimidating.”

Rupert, 22, also says he knows what happens for the rest of Ron Weasley’s life because author JK Rowling told him Ron’s life story, which means she could write more books as she has the characters’ lives mapped out. He said: “She had kind of written the rest of their lives, so it was interesting to hear what we became. I worked in the Ministry doing something.”

Most fans of the films will be watching Harry Potter And The Deathly Hallows: Part 2 to see Ron kiss Hermoine, played by Emma Watson. But Rupert doesn’t have any great memories of it. He said: “We did about four takes. I find it hard to recall anything about that day. It’s been erased from my mind.”

Meanwhile, Harry Potter co-star Daniel Radcliffe says he doesn’t use London Underground for fear of being mobbed by fans.

He told the Radio Times: “I don’t take the Tube because it can go a bit nuts, and if it goes nuts in a small space that can be a bit weird.”