Looking for a movie
 

Well, I'm looking for a movie. Don't know too much about it - I saw it around 1994-1996. I rember only the end. There where 2 boys (which where around 24-30 yrs old) where on a verandah of a mansion. I remmber only the end: one of the 2 boys wanted to burry the urn with the ashes of the girl near the swimming pool, but the other guy opossed. Judning from the fashion, I think the movie was from around 1967-1978.
I know it isn't much, but hope some one can tell me the name of the movie.