Austin Butler was hospitalised immediately after filming ‘Elvis.’ The 30-year-old actor stars as the late King of Rock and Roll in the new biopic and reportedly ended up bedridden with symptoms of appendicitis once filming was complete, according to EW. He said: “It was all-consuming. Then my body just said, ‘All right, I need to rest’ [and I went to the hospital].” The ‘Once Upon a Time in Hollywood’ star – who lost his mother Lori to cancer back in 2014 – then went on to reveal that he felt a “connection” with Elvis Presley because he had also lost his mother Gladys .to the disease back in 1…