Question: List the runtime of movies starred by an African-American actor born on December 28, 1954.
SQL: SELECT T1.Runtime FROM movie AS T1 INNER JOIN characters AS T2 ON T1.MovieID = T2.MovieID INNER JOIN actor AS T3 ON T3.ActorID = T2.ActorID WHERE T3.Ethnicity = 'African American' AND T3.`Date of Birth` = '1954-12-28'