“It was a goof off,” a family source tells PEOPLE, adding that the marriage is in the process of being annulled.
When contacted for comment, Eastwood’s manager said he had no information on the annulment.
The couple received a marriage license from Clark County, Nev., on Nov. 17, and wed that same weekend.
Eastwood, 20, starred in the reality series Mrs. Eastwood & Company with stepmom Dina Eastwood and was Miss Golden Globe 2013. She was recently ushered in the 2014 Miss Golden Globe, 2014 Miss Golden Globe Sosie Bacon at a Hollywood Foreign Press Association.
The planned annulment between Eastwood and Feldstein, who is the music manager for Maroon 5, was first reported by TMZ.