By Jeff Labrecque
Updated May 17, 2013 at 04:00 PM EDT

Steven Soderbergh’s Side Effects was one of the funniest movies of the year so far…

…if the only other films you saw were The Last Exorcism Part II and The Reluctant Fundamentalist.

In fact, the star-studded genre thriller — which Soderbergh has vowed will be his last theatrical movie — is deadly serious. Rooney Mara plays an emotionally distraught Manhattan housewife struggling with the new status quo after her once-wealthy, white-collar-criminal husband (Channing Tatum) is released from jail. Her shrink (Jude Law) puts her on a promising new wonderdrug to cope, but any relief is accompanied by unsettling sleepwalking episodes… occasionally violent sleepwalking episodes.

But that doesn’t mean making the movie wasn’t fun… or funny. Catherine Zeta-Jones, who plays a severe psychiatrist from the burbs who might know more than just her patient’s prior medical history, filmed her co-stars during production with her own video camera. In this special feature from the new Blu-ray, some of her footage was edited into a short featurette by someone named Fletcher Munson. Some diehard cinephiles might be familiar with Munson’s previous work.

Watch the teaser below:

So if Soderbergh does really retire, as promised, will Munson be taking his place behind the camera?

Side Effects will be available on Blu-ray Combo Pack, DVD, and On Demand on Tuesday, May 21.

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