The nude photos were taken around Christmas time.
http://www.freerepublic.com/focus/news/2278969/posts?page=300#300
Black Orpheus opened 12/1959.
I just checked the Chicago Tribune archives and while I dont pay for articles, a search for Black Orpheus for the summer months of 1960, does come up with hits.
I think movies certainly did hang around in theaters for a much longer run time back then.
posted by Velveeta