At least on stage, The Last Five years DOES have dialogue - although you would never know that from the OCR. It's not a lot of dialogue, but it's not "sung-through". Of course, no amount of dialogue could save Jamie from being an unlikable cheater with an ego the size of Everest.
I don't know about the film, though.
"Sticks and stones, sister. Here, have a Valium." - Patti LuPone, a Memoir