What kind of movies, genre? length? what details? or are you ok with anything?
Edit: Marley and Me? is that a comedy romance thing? I don't know many romances, let alone Rom Coms, so if I am wrong, sorry about it, the only other movie I know is The Fault in our Stars but that is a depressing af romance. Is DUFF a rom-com?, that maybe? Scott Pilgrim VS The World might be pushing it but there is romance elements to it eventually, although fairly minimal and is mainly a gamey type action with romance bein the reason everything is going down. Hope this helps to finding a movie.