By Jamie Roberts The glitz and glamour of Hollywood is out in force at the 2024 SAG Awards. Some of the biggest names in the business have descended on Los Angeles in what is billed as the penultimate ceremony in the showbiz calendar before the all-important Oscars. This year sees Oppenheimer and The Barbie Movie battling it out for the prestigious gongs at the Shrine Auditorium & Expo Hall. As for the awards, Idris Elba is on hand to open the ceremony after the guests have finished dazzling on the entrance, with Jennifer Aniston also presenting the SAG Life Achievement Award to Barbra Streisa…