《馴龍記》原聲由 John Powell 作曲。
本片改編自葛蕾熙達·柯維爾（cressida cowell）的同名兒童圖書。話說在一個遙遠的國度里，海上有著一群神出鬼沒的維京海盜，而統治這群海盜的，則是名叫“Hiccup二世”的首領，而他的兒子，自然就是“Hiccup Horrendous Haddock三世”（杰伊·巴魯切爾飾）。Hiccup二世對自己的兒子寄予厚望，一直要把他培養成一個接班人，但Hiccup三世最擅長做的事卻是睡懶覺和無所事事，父親給他安排的種種戰斗訓練幾乎都被他搪塞過去，一日一天一天的這么過下去，終于要到了Hiccup成年的日子。
　　根據維京海盜的“盜規”，凡是年滿18歲的首領繼承人，必須要通過維京海盜的考驗，才有成為首領的資格。而這份考驗就是：捉到一條殘暴兇狠的龍，并且順服它，使它成為自己的寵物。壓根就沒好好學過功夫的Hiccup三世硬著頭皮踏上了尋龍的歷程，可不想卻偏偏讓他撞上了這么一條龍：一個剛剛出生，乳臭未干的小龍崽！望著這頭連牙都沒長出來的小龍，Hiccup三世決定馴服它然后起程回家，不過他所不知道的是，整個冒險才剛剛開始而已……　　
如果你喜歡How to Train Your Dragon的專輯《電影原聲 - How To Train Your Dragon(馴龍記)》里的歌曲，可以把下面的歌曲連接發給你的朋友:
1.This Is Berk - How to Train Your Dragon
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2.Dragon Battle - How to Train Your Dragon
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3.The Downed Dragon - How to Train Your Dragon
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4.Dragon Training - How to Train Your Dragon
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5.Wounded - How to Train Your Dragon
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6.The Dragon Book - How to Train Your Dragon
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7.Focus, Hiccup! - How to Train Your Dragon
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8.Forbidden Friendship - How to Train Your Dragon
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9.New Tail - How to Train Your Dragon
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10.See You Tomorrow - How to Train Your Dragon
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11.Test Drive - How to Train Your Dragon
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12.Not So Fireproof - How to Train Your Dragon
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13.This Time For Sure - How to Train Your Dragon
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14.Astrid Goes For A Spin - How to Train Your Dragon
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15.Romantic Flight - How to Train Your Dragon
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16.Dragon’s Den - How to Train Your Dragon
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17.The Cove - How to Train Your Dragon
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18.The Kill Ring - How to Train Your Dragon
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19.Ready The Ships - How to Train Your Dragon
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20.Battling The Green Death - How to Train Your Dragon
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21.Counter Attack - How to Train Your Dragon
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22.Where’s Hiccup? - How to Train Your Dragon
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23.Coming Back Around - How to Train Your Dragon
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24.Sticks & Stones - Written and Performed by Jónsi - How to Train Your Dragon
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25.The Vikings Have Their Tea - How to Train Your Dragon
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