San Luis Obispo Mothers for Peace (SLOMFP) is a participant in the anti-nuclear movement in California which is depicted in the anti-nuclear documentary film Dark Circle during the early years of protest opposing the Diablo Canyon Power Plant (DCPP). DCPP was the first nuclear power plant to have its license suspended, which resulted from disclosure that they installed safety systems incorrectly. In Dark Circle, Mothers for Peace takes credit for delays which prevented the plant from going online prior to the discovery of the errors.