“Blue Stanton: [begins to silently sing, gradually getting louder] 'Cause baby there ain't no mountain high enough, ain't no valley low enough, ain't... Big Ju: [slaps Blue's arm] Blue. Shut up. I don't want to see your smilin' and shuff in' and hear all your minstrel show singing on this bus. [looks…”
— Gregory Allen Howard, Blue Stanton, Earl Poitier, imdb.com