Robert Downey Jr stars in an epic journey

Robert Downey Jr and the master of Marvels Universe is back to enamor the audience with one of Hollywood's most enduring characters in Director Stephen Gaghan's film Dr Dolittle.

The trailer, which was released on Sunday, is trending number one on YouTube with a staggering 3,798,881 views.

Watch the trailer of 'Dolittle' here 

It starts with the rendition of Louis Armstrong's 'What a wonderful world' as Downey Jr embarks on an adventure to save the young queen of England.

According to the film's synopsis, after losing his wife, the eccentric Dr John Dolittle (Downey), famed doctor and veterinarian of Queen Victoria's England, hides himself behind the high walls of the Dolittle manor with only his pack of exotic animals for company.

However, when the young queen (Jessie Buckley) falls gravely ill, a reluctant Dolittle is forced to set sail on an epic adventure to a mythical island in search of a cure during which he regains his wit and courage.

He encounters a host of animals, including a ferocious tiger who calls him "lunch," backed up by his bands of fury friends  — a gorilla, an ostrich and an octopus, to name a few.

'Chernobyl' and 'Wild Rose' star Jessie Buckley and Harry Collett (Dunkirk) acts as Dolittle's apprentice. Academy Award winner Rami Malek did voice over as the gorilla, Octavia Spencer as the duck, Kumail Nanjiani as the ostrich, and John Cena as a very happy polar bear. Emma Thompson did voice over for the parrot who serves as Dolittle's closest confidante.

The film also stars Antonio Banderas, Michael Sheen, and Jim Broadbent, with additional voice performances from Marion Cotillard, Frances de la Tour, Carmen Ejogo, Ralph Fiennes, Selena Gomez, Tom Holland, and Craig Robinson.

The film is set to release in theatres on January 17, 2020.