This image released by Lionsgate Pictures shows Madison Davenport, left, and Kyra Sedgwick in a scene from "The Possession." (AP Photo/Lionsgate, Diyah Pera)

Here’s what happened over the weekend in pop culture:

• “The Possession,” billed as “The Kosher Exorcist,” won summer’s last weekend at the box office — while the kiddie film “The Oogieloves in the Big Balloon Adventure” set a dubious record, with a three-day per-screen average of $207, the lowest ever for a wide-release movie. [The Los Angeles Times]

• If an online petition can get Betty White a gig hosting “Saturday Night Live,” can it get her a prime speaking spot at the Democratic National Convention? Some fans are willing to find out. [Politico, via New York]

• Burly actor Michael Clarke Duncan, an Oscar nominee for his role as a peaceful death row inmate in “The Green Mile,” has died at the age of 54. [AP, via The Salt Lake Tribune]