Mitt, the Netflix documentary following former presidential candidate Mitt Romney, premiered at Sundance over the weekend, and Romney himself made a surprise appearance.

“The ending I probably won’t like, but nonetheless, I think it will be a good experience and probably give my family and others a chance to see what it’s like to run for president, which by the way is one of life’s most extraordinary experiences,” Romney told reporters ahead of the premiere.

Of documentarian Greg Whitely, Romney said, “He said, you know, even if we never make a movie of this, it will be a wonderful journey to keep for your family of what your presidential campaign was like.”

For MItt, Whitely followed Romney around for six years with exclusive access, and the results are what appear in the film. Whitely maintains that there is no political agenda, but rather that Mitt is meant to be an honest look at a presidential campaign.

The film premieres on Netflix on Friday.