Photos: Chloe Catajan SAN FRANCISCO — Before Calpurnia took The Fillmore stage Saturday night, a small cinema lightbox sat aloof from the instruments. It illuminated the words: “HELLO SF WE ARE CALPURNIA.” An understated touch, the message felt like the calm before the Vancouver band’s thunderous Bay Area debut.…

Calpurnia, courtesy. Finn Wolfhard has wanted to play music since before he broke out as an actor on hit Netflix show Stranger Things. One of his first on-screen gigs was as a young stand-in for Canadian punk band PUP’s frontman Stefan Babcock in a music video. This was in 2014,…