<Table> <Tr> <Th_colspan="2"> Lean on Me </Th> </Tr> <Tr> <Td_colspan="2"> Theatrical release poster </Td> </Tr> <Tr> <Th> Directed by </Th> <Td> John G. Avildsen </Td> </Tr> <Tr> <Th> Produced by </Th> <Td> Norman Twain </Td> </Tr> <Tr> <Th> Written by </Th> <Td> Michael Schiffer </Td> </Tr> <Tr> <Th> Starring </Th> <Td> <Ul> <Li> Morgan Freeman </Li> <Li> Beverly Todd </Li> <Li> Robert Guillaume </Li> </Ul> </Td> </Tr> <Tr> <Th> Music by </Th> <Td> Bill Conti </Td> </Tr> <Tr> <Th> Cinematography </Th> <Td> Victor Hammer </Td> </Tr> <Tr> <Th> Edited by </Th> <Td> John G. Avildsen John Carter </Td> </Tr> <Tr> <Th> Distributed by </Th> <Td> Warner Bros . </Td> </Tr> <Tr> <Th> Release date </Th> <Td> March 3, 1989 </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 124 minutes </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr> <Tr> <Th> Language </Th> <Td> English </Td> </Tr> <Tr> <Th> Budget </Th> <Td> $10 million </Td> </Tr> <Tr> <Th> Box office </Th> <Td> $31 million </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Lean on Me </Th> </Tr> <Tr> <Td_colspan="2"> Theatrical release poster </Td> </Tr>

Who played the music teacher in lean on me