The band's drummer, Roger Taylor, gave the latest update on the biopic during an appearance on BBC's "One Show"
There's no truth to reports suggesting the "Harry Potter" star is poised to play the late Queen singer
The unreleased tracks come from a single recording session in 1983
Sony and GK Films are backing the movie, which is being produced by Robert De Niro
Peter Morgan is writing the script for GK Films and Robert De Niro's Tribeca Productions