Queen guitarist Brian May recently opened up on the struggles of getting the band's biopic Bohemian Rhapsody made. The casting of the lead role of Freddie Mercury proved particularly challenging.Finding the right person to play Freddie was always going to be difficult, according to May. "At some points we thought it was impossible. But along came Rami, and we had a great feeling immediately". Released last month, Bohemian Rhapsody was a box office hit, and has become the second highest grossing music biopic of all time.