To go from "this movie was inspired by the Dells" to "actually no this movie was inspired by David Ruffin" is definitely a slap in the surviving Dells members' faces.

The Dells had Robert travel around the R&B circuit with them, told them about their history, and some basic stuff about the Heartbeats were definitely Dells-related [[them including two brothers, having two lead singers - a gruff baritone and a falsetto, surviving decades of musical change) while other scenes were far more exaggerated [[the Temptations-like drama within the Heartbeats, Eddie King Jr. becoming David Ruffin, JT being the songwriter so that would make him the Smokey Robinson of the group, the sudden breakup, etc.).

This is why I hope the Dells and the estates of the late members can expound on their history on a future Unsung. They need to hurry though since most of the members are either ill or dead.