The instrumental score was composed by Hans Zimmer with songs by Bryan Adams in both the English and French versions of the album. The opening theme song for the film, "Here I Am" was written by Bryan Adams, Gretchen Peters, and Hans Zimmer. It was produced by Jimmy Jam and Terry Lewis. Another song, not included in the film itself (although it can be heard in the ending credits), is "Don't Let Go", which is sung by Bryan Adams with Sarah McLachlan on harmonies and piano. It was written by Bryan Adams, Gavin Greenaway, Robert John "Mutt" Lange, and Gretchen Peters. Many of the songs and arrangements were set in the American West, with themes based on love, landscapes, brotherhood, struggles, and journeys. Garth Brooks was originally supposed to write and record songs for the film but the deal fell through.