Complex sentence: Principal photography on "Call Me by Your Name" lasted 34 days--began on May 9,2016, shortly after "A Bigger Splash" was released in the United States, and completed in June 2016.
Split into simpler sentences: Principal photography on "Call Me by Your Name" lasted 34 days. It began on May 9,2016, shortly after "A Bigger Splash" was released in the United States, and was completed in June 2016.