Photos: “Sierra Burgess Is A Loser” Premiere I’ve updated the gallery with photos of Glen attending the premiere of “Sierra Burgess Is A Loser” in LA. written by Mouza on September 19, 2018 under Gallery Update Public Appearances next postPhotos: 7th Annual ‘Reel Stories, Real Lives’ Gala previous postPhotos: Guernsey Cast & Crew Screening Leave a Reply Click here to cancel reply. Name (required) Email (will not be published) (required) Δ