Brought together by chance an unwonted romance blooms between an affluent twenty-something and a down on his luck mendicant.

>>How would I add all that in a logline?

For a start, what is the wedge issue that threatens to destroy the relationship?? What is the seemingly insurmountable obstacle? that stands in the way?

There doesn't seem to be anything for these characters to gain other than each other. If that is true, the movie wouldn't have any legs to stand on. If you add some kind of struggle or force or goal that would make one character actively pursue the other, then you've created something for the audience to latch on to. Without that, the movie would just be characters doing random things until they fall in love, if you create some tension, the relationship of your characters becomes more realistic.

When? Era or Genre perhaps. What happens when they fall in love?

There just isn?t any meat to eat on these bones.

This could also be the logline for:

Titanic, Mystic Pizza, Aladdin or any number of films. The detail is what makes them different.