Complex sentence: The shot closes in on the necklace, then pulls back to reveal it's still worn as a bracelet on the wrist of now-adult Clarkson, her boyfriend (played by Houston Rhines) shows up at her apartment door, presumably after an argument.
Split into simpler sentences: The shot closes in on the necklace, then pulls back to reveal it's still worn as a bracelet on the wrist of now-adult Clarkson. Clarkson's boyfriend (played by Houston Rhines) shows up at her apartment door, presumably after an argument.