Learn English – What do you call the space where you park a car? Parking spot, space, bay or what

Broadly, English accents are divided into two categories, rhotic and non-rhotic. All English accents were originally rhotic, and the R sound was typically articulated as an alveolar trill, in contrast with the alveolar approximant of most contemporary dialects. Non-rhotic accents began developing in the Middle English period, and were commonplace by the arrival of modern English, gaining popularity in southern England during the 18th century.

Both the British Isles and the United States, as well as Australia and other areas where English is spoken, have regions of both rhotic and non-rhotic accents. As Alex mentions, notable non-rhotic United States accents include coastal New England, New York, and old-style Deep Southern; the so-called "continental" or trans-Atlantic accent, characteristic of upper-class America through much of the 20th century, was also distinctly non-rhotic. Rhotic British accents are to be found in the West Country, as well as much of Scotland and Ireland.

You can consider ensemble poster as well. These pictures are usually posters and usually includes the ensemble photography of the cast.

An ensemble cast is made up of cast members in which the principal actors and performers are assigned roughly equal amounts of importance and screen time in a dramatic production.

From Friends:

Series creator David Crane wanted all six actors to be equally prominent, and the series was lauded as being "the first true 'ensemble' show".

There are different styles of ensemble posters also. You can check this link: http://www.empireonline.com/features/ensemble-movie-poster-styles/11.asp