This is a modern-day Hong Kong actioner, set in a variety of locations (but mostly Tokyo, as the title so nimbly puts it) and with a cast of fresh, young, attractive faces going through their varied motions. Unfortunately the plot is this film's weakest point, a rather dull tale of CIA espionage, counterfeit money, and lots of twists and double-crossings. There are numerous characters (most of whom hide their identity until the conclusion),far too many in fact, making it hard to care what happens to any of them. The emphasis is also on overbearing comedy, something I'm not a particular fan of.

What this film does have to recommend it is a wealth of action, from destructive car chases to speed boat battles, skateboards, and of course a ton of martial arts showdowns. The kung fu here is sleek and stylised with slow-motion moves and impeccable choreography; unfortunately, as this is a film with a young cast and is likely aimed at teenagers, it isn't very violent. The characters are also invariably annoying; newcomer Ekin Cheng is praised in the accompanying documentary for his martial arts skills, but they aren't really apparent here. Old pro Tony Leung steals his scenes as the slick PI with a ton of hidden devices (especially in the 'Inspector Gadget' style opening battle) whilst Kelly Chan just looks very attractive, as do the rest of the young female cast members. The music is memorably offbeat (not to mention annoying). Not a great movie but perhaps a solid offering for fans who know what to expect from this kind of style-over-substance showcase.

Tony Leung (Hero, Infernal Affairs I, II, III, Red Cliff, Lust, Caution) opens with more tricks that James Bond, and an ability with an umbrella that rivals Toshirô Mifune's ability with a sword. We haven't a clue what the movie is about, but the action is hot and heavy.

He meets Kelly Chen (Infernal Affairs, Infernal Affairs III) looking for a guy (Ekin Cheng ) who owes him money. Another big fight ensues. Cecilia Cheung, who was in the infamous sex photos with Edison Chen, saves them both and takes them to the man who explains what they need to know about the missing guy.

What you end up with is the Chinese version of New Moon, a movie designed with pop stars and celebrities to appeal to teens. Nothing worthy of Tony Leung's talents, and certainly not a good Chines gangster flick.

There is a sense of fun to this lightweight film, enhanced by a terrific "mambo" soundtrack and a notable absence of graphic violence; the downside is that there is no suspense or sense of danger. It is immediately apparent that the (confusing) plot is secondary to the action, but the action itself is spoiled by the director's intrusive style (he definitely overuses slow-motion). I didn't hate the film, but it's not by any means the best modern HK actioner you can find. (**)