The director of a documentary about Pharrell Williams has said he could not imagine making the film without the use of Lego due to the way the US musician sees the world. says that due to the way the US musician sees the world he cannot imagine making a film about him without the use of Lego to cover his life and career.

Pharrell Williams, whose new documentary 'Piece by Piece' is now playing in theaters, explains how he remains so youthful looking at 51.

"Piece by Piece" tells the story of Pharrell Williams' journey to becoming an iconic producer. It includes interviews with Lego versions of stars including Snoop Dogg and Jay-Z.

The hit-making producer goes deep on the concept of gratitude, his relationship with Chad Hugo and capturing his life story — in Lego form — with the help of director Morgan Neville.

Piece By Piece has a lot of fun with the creative liberties of the visual embellishment that takes Pharrell’s minifig deep under the sea and to the vastness of space, or turns Snoop Dogg to a LEGO dog. Even still, this collaboration between LEGO and Pharrell never completely ties together in a fully cohesive or deeply emotional way.