In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Where was a very merry daughter of the bride filmed?
Calgary, Alberta, Canada

Voice of optimus prime dark of the moon?
Peter Claver Cullen

Who played dr brown in back to the future?

Christopher Lloyd