<Tr> <Th> Music by </Th> <Td> <Ul> <Li> Ben Salisbury </Li> <Li> Geoff Barrow </Li> </Ul> </Td> </Tr> <Ul> <Li> Ben Salisbury </Li> <Li> Geoff Barrow </Li> </Ul> <Tr> <Th> Cinematography </Th> <Td> Rob Hardy </Td> </Tr> <Tr> <Th> Edited by </Th> <Td> Mark Day </Td> </Tr>

What is the meaning of the movie ex machina