The actor said: “You’re lucky you get to go to so many places with this job, but Cornwall really got under my skin, I really missed it.
“I don’t often miss places, I’m happy to be there presently, but I really missed Cornwall, which I haven’t had for a long time.”
“It’s just beautiful and Mark really brought us into the fold of his team and family,” he added.
Rose of Nevada was filmed in Hayle and in Mullion and Jenkin has spoken about the challenges that tide and time presented him with.
“You cannot change the tide or control the sea,” the Newlyn-born director said.
MacKay said it was inspiring to see Jenkin work.
He said: “It was a real lesson working with Mark, he loves limitations and limitations spur creativity.
“If he can do [a scene or shot] in less and has to do it in less, if he’s sort of compromised by something, he’s thrilled by the challenge of finding a way to make it work.
“It distils it to what’s essential.”