The flashbacks are historically inaccurate. They take place in 1975 but Gene Simmons costume is from Unmasked (1980) and Paul Stanley's is from Love Gun (1977). Peter Criss and Ace Frehley (who are obviously body doubled by Eric Carr and Bruce Kulick) have curly hair when in real life Criss and Frehley have straight hair. Also "Frehley" is wearing the Ankh Warrior costume which was worn by Vinnie Vincent, who didn't join the band until 1982.