Poster ideas based on idea of using a collage

Based on the idea of using a collage to advertise a film that links to the actors and/or themes within the film, as shown in Valentine's Day and Love Actually, I (very roughly) created a poster as can be seen below:

As you can see from the photo above, the poster will include a series of photos consisting of the best and worst things about growing up and being a teenager with the title across the middle. The idea of this is to encourage potential audiences to weigh up the experiences of their youth and decide for themselves if their teenage years were the best years of their lives or not.