A spokesperson for the Academy of Motion Picture Arts and Sciences insists that the omission wasn't a snub.
"It was really an editing decision because we can't fit everyone in," the rep told Usmagazine.com. "There was no specific reason."
The video tribute featured nearly 50 people, including makeup artists and agents, among others, who probably aren't as recognizable to the general public as Renfro. The tribute ended with footage of "Brokeback Mountain" nominee Heath Ledger, who died a week after Renfro.
Renfro died of a heroin overdose in Los Angeles on Jan. 15. He was 25.