Unfortunately, there are a few problems with the way Williams' story is told. “Piece by Piece” covers Williams' impeccable string of hits with his producing partner Chad Hugo, who were collectively known as the Neptunes. From NORE's “Superthug” in 1998 to Gwen Stefani's “Wind it Up” in 2006, their sound has varied The Sound of hip-hop and pop music that spans the culture from No Doubt's “Hella Good” to Jay-Z's “I Just Wanna Love U” and Nelly's “Hot in Herre” to Kelis' “Milkshake.”

They played more than a dozen Top 10 hits, four No. 1 singles and all-time earth-shattering classics like Clipse's “Grindin',” an eerily sparse beat built over what looks like a parking lot full of slamming car doors sounds. The duo's keyboard-heavy sound creations don't feel tied to any particular era – they borrow from 70s funk, 80s synth-pop and 90s boom-bap – and on the whole still sound fresh today, even that you hear. I've heard it 50,000 times.

The Neptunes eventually disbanded, which “Piece by Piece” doesn't really cover (Williams no longer speaks to Hugo, which the film doesn't touch on), but Williams returned in 2013 with Robin Thicke's “Blurred Lines” (which he later wrote for similar to an earlier work by Marvin Gaye) and “Get Lucky” by Daft Punk, which was followed a year later by his universal hit “Happy”, for which it was recorded for the soundtrack to “Despicable Me 2”.