Now playing in theaters! Mia Hall (Chloë Grace Moretz) thought the hardest decision she would ever face would be whether to pursue her .br Now playing in theaters! Mia Hall (Chloë Grace Moretz) thought the hardest decision she would ever face would be whether to pursue her .br Now playing in theaters! Mia Hall (Chloë Grace Moretz) thought the hardest decision she would ever face would be whether to pursue her .br Subscribe to TRAILERS: Subscribe to COMING SOON: Like us on FACEBOOK: If I Stay Official Trailer .