Complex sentence: However, her identity as a feminist was not limited to her filmmaking; in 1971, she placed her name on the Manifesto of the 343, published in the French magazine Le Nouvel Observateur.
Split into simpler sentences: However, her identity as a feminist was not limited to her filmmaking. In 1971, she placed her name on the Manifesto of the 343, published in the French magazine Le Nouvel Observateur.