Was there a movie made about the beach boys?

Yes, there is a movie made about the Beach Boys. It is titled "Love & Mercy" and was released in 2014. The movie focuses on the life and career of Beach Boys lead singer Brian Wilson, and chronicles his struggles with mental illness and addiction. John Cusack and Paul Dano star as Brian Wilson at different points in his life, and the film features original Beach Boys music. "Love & Mercy" received positive reviews from critics, with praise for the performances of Cusack and Dano, as well as the film's portrayal of Brian Wilson's struggles.