"Harry Potter" star Matthew Lewis, who plays the clumsy yet loyal Neville Longbottom in the "Harry Potter" movie series has just given the spinoff "Fantastic Beasts and Where to Find Them" and its lead star Eddie Redmayne his seal of approval.

Redmayne plays magizoologist Newt Scamander, who travels all over the world in search of magical creatures. The movie is set decades before Harry and his best friends Ron Weasley and Hermione Granger ever step foot in Hogwarts School of Witchcraft and Wizardry.

The entire cast of "Harry Potter" were all curious about the prequel, so Lewis decided to see for himself what the movie is all about.

On his Twitter account, the actor teased that he was able to visit the set and share a conversation with Redmayne.

"Oh, forgot to say, I was on the set of Fantastic Beasts last week. Spoke to Eddie and I tell you now, the world of HP is in very safe hands," he wrote.

Earlier, Lewis had a sexy photo shoot for a magazine, and "Harry Potter" fans went wild seeing the actor's physical transformation.

The attention it received became too difficult to handle that Lewis admitted that he had to go under the radar for a couple of days and wait for the interest to subside.

He told The Evening Standard during an interview that while he does not regret doing the shirtless photo shoot, he still feels incredibly overwhelmed by the attention it has received.

"It was a good thing to do, the only thing is that it went a little bit more high-profile than I anticipated," he said. "The reaction was crazy - I turned my phone off for a couple of days, it was just a bit weird. It's all nice stuff being said, I can't complain about it, it's very flattering. It's just weird to have people talking about that."

Lewis is constantly amazed how "Harry Potter" fans have remained loyal throughout the years. It has been over a decade since the movies were last seen, but fans are still carrying the torch for the books and movies.

"Even now after so any years of doing this job I still forget how massive Harry Potter is and how many millions of followers Jo Rowling has and that every little thing she says gets picked up," he said. "It's very easy to under-estimate that whole thing."

"Fantastic Beasts and Where to Find Them" has been scheduled for release on November 18, 2016.