Zac Efron on acting with a giant centipede

The movie “The Greatest Beer Run Ever” recounts the unbelievably true story of “Chickie” Donohue, who in 1967 sailed to Vietnam to deliver beers to his buddies fighting the war. In this “Sunday Morning” exclusive, actor Zac Efron describes filming a tense scene with an unusual, many-legged co-star: a giant venomous centipede.