《斷背山》電影的主題曲是《A Thousand Miles》，歌詞如下：
Open up your eyes
And you'll see a thousand miles
Between us and the edge of the world
And you know that there's no way
To measure what we've been through
Or what we've been through
And I will be with you
Every step of the way
I'll be there for you
Every single day
And I will be with you
Forever and ever
And I will be with you
Until we say goodbye
It's a promise that I made to myself
To stay right beside you
Till the end of time
And every moment that I'm with you
I feel like I'm at home
You know that I am never alone
And I will be with you
Every step of the way
I'll be there for you
Every single day
And I will be with you
Forever and ever
And I will be with you 直到我們說再見，這是我對自己許下的承諾，陪在你身邊，直到時光盡頭。我將伴你左右，無數的日日夜夜。我將與你同在，每一步的路途，每一日的朝夕。和你一起，永遠的陪伴，永不失散。你是我千山萬水，也要追逐的那一方。我知道你在天涯海角，但我仍會翻山越嶺，去找你。
希望以上回答對您有所幫助。