"It's not so much a child's fairy tale... this is definitely drawn from Kipling and has a much darker approach to the story-telling. There's no singing or dancing from the animals, that's for sure."
The trailer shows child actor Rohan Chand as Mowgli, weeping as he rattles the bars of a cage, while the black panther Bagheera (voiced by Christian Bale) offers him advice.
Other voice actors bringing this dark vision of the jungle to life include Cate Blanchett as Kaa the snake, Benedict Cumberbatch as the tiger Shere Khan and Serkis as Baloo the bear.
"In Kipling's book [Baloo] is completely different to what people would expect," Serkis has said. "He's much more like a drill sergeant, who really pushes Mowgli... People have such strong preconceptions about the characters and the story. This will shatter those preconceptions."
Mowgli is out in UK cinemas from October 19.