I remember, at the time of the movie, that this was a very popular melody (the lyrics, for some reason, never caught on) and that there were a number of jazz guitar covers, it got to be a bit of a standard--

If you play through the chords in D, the melody is quite easy to pick out--You should listen to the music to figure out the timing of the Bm7/F#m7/B7 changes, because they are not clear from the way they are plotted on the lyric sheet-