The 85th Annual Academy Awards, celebrating the top movies of the year, were a hot topic on Facebook Sunday night, but the awards ceremony was also popular on Facebook-owned photo-sharing site Instagram. Ben Affleck, who directed best picture-winning Argo, joined Instagram that day and quickly gained more than 5,000 followers.

Facebook grouped together some of the most popular Instagram posts from Oscar night, including Affleck getting his award engraved: http://instagram.com/p/WJOwwBQ67l/

Other popular Instagram posts from celebrities at the Oscars:
Behind-the-scenes:

Readers: Did you post any Oscar-related photos to Instagram last night?

Image courtesy of Featureflash / Shutterstock.com.