you have the wrong person
人違いだと思います。
I think you have me confused with someone else.
私は人違いだと言って逃げたわ
I told them they had the wrong person and ran away.
— セントラル・ステーション (1998)
人違いだ。
You've got the wrong person.
でも人違いだ
But you’ve got the wrong person.
— グッバイ、レーニン! (2003)
人違いだよ
You've mistaken me for someone else.
— マレーナ (2000)
こっちだと思ったが人違いだ
I thought it was you, but I mistook you for someone else.
— 自転車泥棒 (1948)
人違いだ
— フィフス・エレメント (1997)