What is the Irish song that played a lot in movies usually during chase or fighting scene?

"The Irish Rover" is the song you're referring to. It is a traditional Irish folk song that has been used in various movies, particularly during chase or fighting scenes. The song tells the story of a group of Irish sailors and adventurers who embark on a journey filled with drinking and adventure. The lively and upbeat rhythm of the song adds energy to the chase or fight scenes, often heightening the tension and excitement.