The actor better known as Thor kills it on the set of the upcoming comedy
Chris Hemsworth was nervous.
Turns out, the man had nothing to worry about.
I told him not to worry.

He wouldnt have to come up with anything if he didnt want to, says Feig.
I remember looking at [screenwriter] Katie [Dippold] like, Did you write that for him?
And she said no.
He just turned out to be this amazing improviser, says Feig.
The director says he tailored the role more specifically for Hemsworth after he first met him.
That made all the difference.
It certainly had the proper effect on his castmates.
What is going on?
Plus, hes just a great guy.
Adds Wiig, It was like we had known him for 20 years.
We all fell in love with him.
Hemsworth will join theGhostbusterson the big screen July 15.