Underworld initially refused permission to use it in the film, as they disliked how their music was often used in negative portrayals of clubbing, but Boyle persuaded them after showing them a clip.
Initially, Underworld rejected the opportunity to have their music featured in the movie, due to their dissatisfaction with how it was often portrayed in a negative light regarding clubs, however, Boyle successfully persuaded them after showing them a brief excerpt.