, Wikus gets his comeuppance when he accidentally ingests an unidentified liquid substance , which incurs an alarming physical reaction . `` District 9 '' is a winning debut , says CNN.com 's Tom Charity . Film is about extraterrestrials who emerge over Johannesburg . Score: 7
`` District 9 '' is a winning debut , says CNN.com 's Tom Charity . Film is about extraterrestrials who emerge over Johannesburg . Score: 7