Anticipation for Slipknot's second album was intense. In early 2001, the band began recording the second album at Sound City and Sound Image studios in Los Angeles. Around this time, conflicts arose between band members due to extensive touring and recording schedules. Recording of their second album ended in February 2001 and the band embarked on their Iowa World Tour. Entitled "Iowa", Slipknot's second album—released on August 28, 2001—peaked at number three on the "Billboard" charts and at number one in the UK. The album produced three singles; "The Heretic Anthem" (promotional single), "Left Behind" and "My Plague", which appeared on the soundtrack for the film "Resident Evil". In 2002, Slipknot appeared in "Rollerball" (2002), performing "I Am Hated". The release and intense promotion of the album resulted in sold-out shows in large arenas in several countries.