I'm actually currently watching Hannah and Her Sisters (Woody Allen, 1986). The film is replete with witty and well-chosen intertitles. The related vignettes often reference these intertitles (or, the other way around). From references to e.e. cummings and Tolstoy, to witty and telling titles that insinuate thematic changes , Woody successfully plays with the form. I forgot how funny and how maturely bitter the film is. Well, you can do worse things on a Thursday afternoon.
* Shahin I. Beigi