French Kisses and heavy petting. Them's the makings of a downright captivating tale.
You want your students to create and then describe/narrate their own storyline for a ROMANCE film. Medium-sized groups are probably best for this. Give them ample time to prepare, and then have them share it with the class.
Potential Elements:
A boy/girl unlucky in love
Enemies who end up falling for each other
Forbidden love
A crime of passion
Losing the one you love, then getting them back years later
Love lost because of a misunderstanding
A meddling, overbearing mother-in-law
People trying to keep you apart
Waiting for someone for a very long time
One lover dying
A honeymoon
Dating
Friends setting you up
A competitor
Eloping