I wouldn't consider The Bling Ring poster ugly, just boring. It makes sense for the movie: pretty young people shopping and mostly looking bored. But, it does lack imagination.
It's interesting to note how important the font/logo are to the poster. The way the title is laid out on The Bling Ring poster is crowded. And, despite how much I adore Queen Latifah, the Mad Money font is just goofy looking.
On the flip side, you can see anything written in the Rocky Horror Picture Show font and immediately think of that musical.