So What Did YOU think of the movie Cadillac Records?

Cadillac Records, the biopic on the founding of Chess Records by Leonard Chess, gets my props for shedding light on the accomplishments of the African-American architects of rock (Etta James, Muddy Waters, Little Walter, Chuck Berry, Willie Dixon). It provides a history lesson not only for The Jonas Brothers tweens but for those Led Zeppelin fans who think they came up with the music for "Whole Lotta Love" on their own (Google it!) But what did you think of the movie?