For their usernames, some Reddit users don’t look too far and just describe what they do, like shitty_watercolour for example. Another user has been playing with photos he find on Reddit, Your_Post_As_A_Movie.
That user, who is probably a designer with a lot of time on his (or her) hands, takes photos on the social network and turns them into professional-looking movie posters. Most of the posters show some great Photoshop skills and some good ideas to go with it. Here is a selection of posters, along with the photos he took his inspiration from.