Kaffarah for breaking one's oath
Q: I have taken an oath in the name of Allah never to watch TV or movies if my father's blood report comes normal. Alhamdulillah his blood report came normal. A few days back one of my friend's showed me a movie trailer, I told him before that I've made niyyat not to watch TV and movies but he was unaware that day and I coudn't say no to him and unintentionally I wacthed the movie trailer
1. Does my oath still remain? If not, what kaffarah do I have to pay?
2. Does my oath still remain if I broke it or do I have to retake it?
3. I unintentionally broke it but I am scared of my wrongdoing that Allah will punish my father, how do I repent it?