Scott Huver Standing on the roof of The Grove’s parking structure, writer-director Lena Dunham took in the lavish details of Friday’s influencer-packed VIP screening of her new Prime Video film “Catherine Called Birdy,” clearly delighted by the Ren-Faire-meets-rave vibe that Amazon created to capture the film’s blend of 13th Century setting and contemporary tone. “I’m not above doing all the activities,” enthused Dunham, clad in a billowy blue hoop skirt that essentially precluded sitting down yet matched the event’s old-new ethos by also prominently displaying her tattoos. “I just went and got some jewelry engraved.” Dunham’s immersion in “Birdy’s” world goes back to reading the source material – Karen Cushman’s beloved 1994 YA novel – for the first time when she was 10 years old.