This Avengers: Age of Ultron gag reel and other bonus features can be found on the DVD and Blu-ray for Avengers: Age of Ultron when it’s released on October 2.
This video features Mark Ruffalo's Peter Falk impression, Stellan Skarsgård’s impromptu inappropriate instructions to one of his character’s colleagues, and Thor’s hammer-catching skills.
The video also confirms that Samuel L. Jackson improvs a scene just exactly how you would imagine he would. “Don’t be going all stealth mode, motherf*cker. We can’t see you.”
You can watch the video below: