It's no surprise that former Saturday Night Live star absolutely slays in The To Do List and it's even less of a shock to hear that his improvised riffs dominated the DVD's blooper reel that ETonline scored an exclusive snippet from!
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Rachel Bilson and Johnny Simmons can barely keep it together around Hader, while star Aubrey Plaza leaves the crew in hysterics with her spontaneous admissions. Watch!
The To Do List hits DVD and Blu-ray on November 19.