Annie and the Movie Star by Amy Sparling

Annie just lost her nursing job and is about to be homeless, until her BFF Julie invites her to crash at her place in the tiny town of Sterling, Texas. Annie promises this move is temporary, lasting only until she can find a job in the big city again. But right now, the only place hiring is the movie crew that just came to town. They need an actress to play the small role of a nurse, and Annie needs a paying gig.
Trevor is an up-and-coming movie star. His newest role is playing the leading man in a small town sweet romance movie. It’ll be a huge hit for his career, because he’s starring along side a world-famous actress.
When his costar breaks her leg shortly before filming, the panicked director chooses a side character to temporarily fill in. Annie is adorable, and sweet…and a terrible actress. If Trevor has any hope of making this film a hit, he’ll need to teach her the ropes. Only, maybe he’s too good of a teacher because he’s about to break the biggest rule of acting:
Never fall in love with your costar.