Conventions of Romantic movies.

1. Hearts, which indicate love and happiness.
2. The most common story line is "boy meets girl." I believe this is the case because a lot of people can relate to this type of story line. Examples of movies that share this story line are friends with benefits  Love happens, Leap year and many more.
3. The main topics romantic films cover are Status, Gender, Relationships and sexuality. 
4. There are often a lot of emotional feelings involved. One really good example could be "this means war," where they experience love in a near death experience.
5. The main target audience for a romance film is females.
6. Just like this means war and Leap year, romance films ted to have a sub genre which influences romance films a lot. In the modern day, people are identifying Romcoms (romance/comedy) as its own genre which really shows what an impact sub genres play on romance films.
7. The typical story line also includes a break-up and towards the end, they get re-united again.