Well, they could be connected in terms of the overall concept of a modern take on the Cinderella story. Maybe the settings or the way the characters' journeys unfold have some similarities.
Mary and Joey in Another Cinderella Story. Mary was always the girl in the background, cleaning up after the big events in town. Joey was the local heartthrob who was always surrounded by fans. One day, while Mary was cleaning the stage after a concert, she found Joey's songbook. She opened it and was immediately captivated by the lyrics. Joey came back looking for it and was surprised to see Mary so engrossed. Instead of being angry, he was intrigued. He asked her what she thought of the songs. Mary gave her honest opinions, and Joey was impressed. This led to them spending more time together, sharing ideas about music and art, and slowly falling in love as they discovered more about each other in the world of the story.
Well, in 'Not Another Cinderella Story', the main character is a girl who is basically treated like Cinderella in the traditional story. She is oppressed by her step - family. But she has a passion for dance. The story follows her journey as she meets a boy, who is initially a mystery to her. They fall in love through a series of events including a big dance event, like a ball. And in the end, love conquers all the difficulties her step - family and other things have put in their way.
Amazon Prime Video might be a good place to look as well. Sometimes it offers movies for rent or purchase. Additionally, check your local cable or satellite TV provider. They may have it available on one of their movie channels.