<span>The follow-up to 2016 animation film </span><span><em>Trolls</em></span><span> arrives as something of a saviour. Originally set for a global cinema roll-out, until the coronavirus outbreak wreaked havoc around the globe, </span><span><em>Trolls World Tour </em></span><span>is instead headed directly to video on demand. And with so much bleak news around currently, the timing could not be better for a luminously coloured fairy tale stacked full of pop tunes. It's a welcome distraction from the real world.</span> <span>The story reacquaints us with Poppy (voiced by Anna Kendrick) and Branch (Justin Timberlake), the two troll heroes from the original who live in a day-glo world of glitter and never-ending pop recitals. While Poppy is now queen, she learns from her father that theirs is not the only tribe of trolls; in other parts of the kingdom, other groups live – trolls who listen to classical, funk, rock, techno or country.</span> <span>These trolls were separated after becoming intolerant of the other tribes’s musical tastes, but worse is to come, thanks to Queen Barb (Rachel Bloom), leader of the rock-loving trolls. When she is not turning it up to 11, she is plotting to steal the magical music string that each troll tribe possesses; when she has all six, she will be able to play an unimaginable power chord on her guitar and rock will rule them all.</span> <span>Poppy, Branch and their friend Biggie (James Corden), who carries a yellow worm called Mr Dinkles, take flight in a pink hot-air balloon, visiting these far-off musical lands in the hope of stopping Queen Barb. Each region has been imaginatively designed; Symphonyville, for example, where the classical-playing trolls live, has sheep with black musical notes for legs.</span> <span>The jostling of the different musical styles makes for an amusing theme that runs throughout. When Poppy arrives at the country music area, and hears a particularly mournful ballad, she muses: “They must not know that music is supposed to make you happy.” </span> <span>She then meets Hickory (Sam Rockwell), a cowboy who helps her out, much to the annoyance of the churlish Branch, who clearly harbours feelings for her.</span> <span>That comes to a head with the song </span><span><em>Perfect For Me</em></span><span>, a tune co-written by Timberlake and a high point in the film, which expresses Branch's attraction to Poppy, despite their evident differences. This turns out to be a big theme in the film. "Denying our differences is denying the truth of who we are," we are told, and celebrating alternate cultural tastes wins approval here.</span> <span>Walt Dohrn, who was behind the 2016 original, returns to the director's chair, joined by David Smith, who receives a co-director credit. Together, they keep </span><span><em>Trolls World Tour </em></span><span>rolling along nicely, with a roster of catchy tunes. </span> <span>Right from the start, with a Troll-inspired take on Cyndi Lauper's </span><span><em>Girls Just Wanna Have Fun</em></span><span>, the film blasts you with its beats, from the Spice Girls's </span><span><em>Wannabe</em></span><span> to Deee-Lite's </span><span><em>Groove Is In The Heart</em></span><span>. A K-pop versus reggaeton dance-off is also a highlight.</span> <span>While Kendrick and Timberlake slip back into their old chemistry naturally, there are also plenty of secondary vocal performances to enjoy. Funk maestro George Clinton and singer Mary J Blige play the King and Queen of Funk (who live in Vibe City, obviously). The inimitable Ozzy Osbourne voices Barb's father, with a few well-chosen groans and grunts. </span><span><em>The Big Bang Theory</em></span><span>'s Kunal Nayyar can also be heard.</span> <span>Children will certainly get a kick out of the film's wacky visuals. One sequence involving Mr Dinkles hovering between this life and the next is particularly off-kilter. But </span><span><em>Trolls World Tour</em></span><span> never lets anything destabilise its perennially upbeat nature. </span> <span>From the colours to the characters to the music, this film is determined to make even the grumpiest of trolls smile.</span> <em><span>Trolls World Tour is available through video-on-demand services from Friday, April 10. More information on where it will be streaming, is available at www.universalpictures.com</span></em>