Whedon's first tweet, which coincided with the release of the film's first trailer, read: "Hey it's Joss. I'm tweeting. I'm a member of the twitterati. I hath tweeth'd. It's on."

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Long averse to social media, Whedon has used the fan site Whedonesque.com to send periodic messages to his massive fan base, which he has built through cult series such as Buffy the Vampire Slayer, Angel, Firefly and Dollhouse.

Whedon's tweeting will begin during a road trip to Austin for SXSW, he wrote in a comment on Whedonesque. "On the way we'll laugh, sing old songs, resort to cannibalism WAY too early, and abuse social media. Yes, I will be tweeting. It'll be @MuchAdoFilm, since I'm still too lazy/confused to get my own account, but it won't just be me trying to drum up business for the film (In theaters this June!) -- I promise at least a couple of appalling pix of Fran and Ashley resorting to cannibalism (#waytooearly)."

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Whedon added, "Wish us luck, enjoy the trailer, and get ready for 140 characters of PURE ADRENALINE. I'll see you in Hell. (I might not. There's a lot of people there. Maybe text me and let me know where you're damned, and I can try to get there.) Kiss Noise!"

The writer-director hit it big last year with Marvel's The Avengers and now will help oversee the comic company's entire film universe. But he also is staying true to his roots; Much Ado is a tiny adaptation of the classic comedy, starring some of his most frequent collaborators, including Nathan Fillion.