Featured on the soundtrack of the film Alone in the Dark,Wish I Had An Angel became the group's most popular single in Europe and in the United States, next to "Nemo", and their highest placed single in the UK charts. It made it onto two U.S. film soundtracks. Directed by Uwe Boll, "Wish I Had an Angel" was the last video from Once and it features some scenes from the 2005 movie Alone in the Dark, also directed by Boll.

Wish I Had an Angel is the second most played song by Nightwish in concert, with well over 470 times, as of August 2018. During Once and Dark Passion Play tours it was always the last song performed. This DVD release features the music video for Wish I Had An Angel, as well as the making of the video.