Sam Rockwell, Frances McDormand, Allison Janney, and Gary Oldman pose in the press room during the 90th Annual Academy Awardsin Hollywood, California. CREDIT: Jeff Kravitz/FilmMagic By the time Jimmy Kimmel, host of the 90th Academy Awards, took the stage at the Dolby Theatre, there was already an uncomfortable tension surrounding what Hollywood loves to call its biggest night.