Visible crew/equipment: After the failed shopping trip, the manager takes Vivian to his office, and lifts a chrome pot to water the plant. The film crew can be seen in the reflection on the pot. (00:42:40)
Visible crew/equipment: Early in the movie we see Edward on the phone talking to Jessica. As Edward says "goodbye Jessica" we can see the reflection of a camera crew member squat down to the floor. This can be seen near Edward's right shoulder.
Chosen answer: Posters are usually designed long after the film has been made, and by the marketing department. Decisions about the outfit may have been based solely on what was considered best by the marketing department (for instance, to match the color of the lettering in the title.) Also, Julia Roberts' head has been super-imposed onto a model's body in the poster image (just as Richard Gere's hair has been darkened). These are all creative marketing decisions.