The wait in Hollywood is over: The 98th Academy Awards are underway. Comedian Conan O’Brien is back for a second year to host the ceremony on Sunday, held at the Dolby Theatre in Los Angeles. It’s an Oscars race that seemed like a runaway for “One Battle After Another” but may be a close call after all, thanks to some late-season wins for “Sinners.” Other films with several nominations include “Sentimental Value,” “Marty Supreme,” “Frankenstein” and “Hamnet."