“We need more Dollys in the world,” is the message of this raucous but hugely enjoyable comedy, which, at the same time, reminds us that there is—and can only be—one Dolly Parton. The 76-year-old country legend is having quite a moment at SXSW this year, arriving at the festival with a concert to promote her new album (and novel) Run, Rose, Run and her online NFT project Dollyverse, while riding a wave of public goodwill after her philanthropic support of the Covid vaccine with a $1 million donation.