<Tr> <Th> Production company </Th> <Td> Participant Media Imagenation Abu Dhabi Double Feature Films </Td> </Tr> <Tr> <Th> Distributed by </Th> <Td> Warner Bros. Pictures </Td> </Tr> <Tr> <Th> Release date </Th> <Td> <Ul> <Li> September 3, 2011 (2011 - 09 - 03) (Venice Film Festival) </Li> <Li> September 9, 2011 (2011 - 09 - 09) </Li> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> September 3, 2011 (2011 - 09 - 03) (Venice Film Festival) </Li> <Li> September 9, 2011 (2011 - 09 - 09) </Li> <Li> </Li> <Li> </Li> <Li> </Li> </Ul>

What was the incubation period in the movie contagion