From the discussion at "When did Opening Credits become Closing Credits?", we learn that "the use of closing credits in film to list complete production crew and cast was not firmly established in American film until the 1970s. Before this decade, most movies were released with no closing credits at all."
What is the most recent Hollywood feature-length film not to contain closing credits at all? Since the 1970s, have there been any "retro"-style movies that used opening credits only, similar to how we nowadays see the occasional modern film that is silent or black-and-white (or both)?
The last Hollywood movie I found with no end credits is Apocalypse Now (1979):
I have always felt the movie to be the very best depiction we will ever see of the insanity of war. I actually saw it on a huge screen back in 1979 when it was first released, and it was mind-boggling - even moreso at the time. It was playing at one of the last huge cinema theatres left in my city. When it first played, it was released with no end credits at all. Instead, we were given printed programs containing all the credits. So the movie ended with "the horror, the horror" and then the loud sound of the rain over the river and very slow fade-out. I will always remember the awed silence of the audience as we left the theatre. Another reason it was so mind-blowing at the time is that surround sound had just been created in theatres, so the sound was a stunning new dimension. I was so blown away by the movie, I hid in a washroom stall and snuck back in to see it a second time right away. It was one of the most memorable viewing experiences I have ever had.