LOS ANGELES—Showing off his new accent Friday during the press tour for the film, Austin Butler has reportedly been unable to stop making revving noises since starring in The Bikeriders. “Brmm, brmm, brmm, brmm, brmm, brmm, brmm,” said the 32-year-old Hollywood actor, whose speech was inflected with a rumbling sound noticeably absent in that of co-stars Jodie Comer and Tom Hardy. “Vroom, vroom. Nyaaaaaaaaaahh. Zzza, zzza. Braaaaaaaaaaaaap!” At press time, sources confirmed an upset Butler had frantically begun making backfiring noises after an interviewer suggested the accent was a put-on.