United Kingdom, March 16 -- Dame Helen Mirren wants to do a DNA test to see if she is related to Harrison Ford.

The 79-year-old actress stars opposite Hollywood legend Harrison, 82, in the 'Yellowstone' prequel series '1923' and because they get on so well, she thinks they might actually be distant family members.

She told People: "Harrison and I have a weird thing.

"[It's like] your best friend in college that you haven't seen for like 30 years, but [once] you're back, [it's] exactly [the same], only even better, actually. Even better.

"I don't know if you feel the same, Harrison, but I certainly feel like that, that there is this weird, connected[ness]. Maybe we should do a DNA [test]. Maybe we are brother and sister in the end or s...