Task: Explanation
Input (English): Gerald Hiken (born May 27, 1927) is an American actor. A native of Milwaukee, Hiken was nominated for the Tony Award for Best Actor in a Play in 1980 for his performance in "Strider". He has performed in many other Broadway plays and has appeared in supporting and bit roles in various films including "The Candidate" (1972), "Reds" (1981), and "Fat Man and Little Boy" (1989). Question: Gerald Hiken had a supporting role in the 1989 film that reenacted what World War II project? Answer: Manhattan Project
Output (English):  He has performed in many other Broadway plays and has appeared in supporting and bit roles in various films including The Candidate 1972, Reds 1981, and Fat Man and Little Boy 1989.