Louis Koo at the press conference of "Line Walker".

Adapted from TVB Hong Kong's highest-rated television series of the same name, famous crime thriller "Line Walker is set to wow audiences this August in Malaysia and Singapore.

The 2014 drama series which starred Charmaine Sheh, Michael Miu, Raymond Lam and Sharon Chan, had won various awards in several countries including Singapore's Media Favourite Series at the StarHub TVB Awards 2014, Most Favourite Series at the TVB Star Awards Malaysia 2014 and Best Drama at the Hong Kong TVB 48th Anniversary Awards 2014.

However, the movie adaptation of the series which is directed by Jazz Boon, will only see the return of Charmaine Sheh as one of the main characters, joined by other talented cast like Louis Koo, Nick Cheung and Francis Ng.

Last Friday, the movie's lead actor Louis Koo made a special appearance in Malaysia to promote the movie to fans of the series.

But before that, the 45-year-old actor met the Malaysian press at The Westin Hotel, Kuala Lumpur for a media conference.

Cinema Online: Did you watch the "Line Walker" TV series before starring in the movie?

Louis Koo: I didn't watch all of it, but I do know about it. But now they are re-airing the series in Hong Kong, so I think I'm going to start watching it again.

Which character from the TV series gave you the deepest impression?

Of course it's Charmaine Sheh's character, Ding Jie, and Raymond Lam's Bao Seed.

So there are three new main characters in this movie including Inspector Q played by Francis Ng, Lam played by Nick Cheung and you, who play the character named Shiu. Can you tell us about your character?

Shiu is basically like a brother to Lam, both of them grew up together and are very close to each other. They both work together in this organisation, but because both of them are so busy with their own work, they begin to grow distant. In the middle of the film, we're trying to track down a mole in our organization and it could be anyone. But Shiu is also someone who treasures his relationship with Lam. They fight at first, but then they become good friends again.

Do you have any similarities with your character?

To be honest, no. Shiu is very playful. But he treasures friendships, so I guess that part is sort of like me.

Koo talking about his character, Shiu.

All of you also shot the movie in Brazil. How were the conditions in Brazil?

Everyone was worried about Brazil because of the Zika virus. But when we were there, we didn't see a lot of mosquitoes there, I mean there was mosquitoes, just not a lot. Another problem to worry about is the public security. When we came down our flight, there were already police protecting us. Even while we were shooting, we could hear the sound of guns.

Were you worried with all the gun sounds around?

Well, you can't really do anything about it even if you're scared. We tried to be careful even though we have protection because you never know, you might suddenly get shot.

If you were really attacked by someone while you're on set, what would you do?

Then that would be even more interesting. Our security also has guns, so we would probably be seeing some real gun-fights there!

The film is about spies. What is your take on this spy identity?

This is not the first time that Hong Kong has created this sort of film. We already have a lot of spy-featuring films like a spy in a police force or in triads, but what's different about this film is that the spy could be anyone, so you really have to guess because no one knows.

The press taking pictures of the 45-year-old actor.

The film revolves around the theme of betrayal, so how would you handle a friend's betrayal?

If it's in a film, the common route would be to kill him or her. But if it happens in real life, there's not much that you can do. All you can do is to keep your distance from that person.

Has it ever happened to you?

I wouldn't call it a betrayal, it's more like we're not compatible because of our differences in personality, so we don't talk or we just stop being friends.

So you got the chance to work with Charmaine Sheh again, and I heard that you bullied her a lot. Do both of you discuss with each other first before shooting a scene?

Actually my character in this film requires me to bully her. Because she is investigating the mole, so I need to act as a decoy to distract her. Actually we don't even need to discuss because Charmaine is a very professional actress, and she knows how to do her work well.

You don't have much screen time with her in this film, right?

Well because this film is about a spy, it's not really about the relationship between a man and woman. So I wouldn't feel that our screen time has become less. But the relationship between me and Nick seems more like a couple than me and Charmaine.

It is rumoured that Charmaine is famous for seducing her co-workers on set, did you fall prey to her seduction?

Really? Did she seduce people? I already filmed two movies with her, I don't think so. Or maybe I'm just immune to this kind of things. [laughs]

What are your box office expectations?

I don't have any particular expectation. Because as an actor, what's important is you do your job well. The film has its own attraction and it is not really my place to worry about that.

Koo rarely feels pressured when he is in the acting mode.

What is your biggest worry when shooting a film?

If you worry too much when shooting a film, it will be very tiring. It is pointless to pressure yourself into worrying about something because you're just looking for trouble.

Before we watch this film, do you think it's important for audiences to know the plot of the TV series?

Even though this film is adapted from the drama series, only two characters from the series appear in the movie. The others are all new characters and the whole story is new too. So I don't think it really matters if you haven't watched the series. It would be very refreshing for the audience as the style of the drama will be incorporated into the film.

"Line Walker" will walk into cinemas this 11 August 2016.