On Ben Affleck's to-do list last night: win an Oscar for Best Picture. Check. Deliver humble acceptance speech with a special shout-out to the missus, Jennifer Garner. Check. Launch Instagram account. Check.
[ Photos: Red carpet report card ]
Affleck was an early adapter to Twitter by Hollywood standards, joining the social network in June 2012. (Of all the A-list nominees last night, only four actually have Twitter accounts -- movie stars have not taken to social media like TV actors or musical artists.) Now, he's also sharing on Instagram, posting five photos Sunday night and attracting 5,814 followers in the process.
