![This image released by Warner Bros. Pictures shows Anthony Ramos in a scene from "In the Heights." (Warner Bros. via AP)](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/6MR75PO4MXHV75ACZDXZJRXSAI.jpg?smart=true&auth=c9430736cfe6c96fffc1377f59dbeee060a70adbe1614ea281985273a3926482&width=400&height=225)
Anthony Ramos in a scene from 'In the Heights'. Warner Bros
Anthony Ramos in a scene from 'In the Heights'. Warner Bros
Lin-Manuel Miranda apologises for lack of dark-skinned actors in 'In the Heights': 'I promise to do better'
The acclaimed playwright says he 'hears the hurt and frustration' over the big-screen adaptation of his hit musical