The actors had to reshoot several scenes over the weekend because the director wasn't satisfied with the performances.

reshoot 是由前缀 re-（表示"重新"）和动词 shoot（拍摄）组成的复合动词，意思是"重新拍摄"。在电影制作中，shoot 常用来表示"拍摄（电影或场景）"，所以 reshoot 特指"重新拍摄（某个场景或镜头）"。