Buying film can be expensive so you need to make sure you are not wasting money and getting the results you want.
There are three types of film:
Black and White
Colour film is the most common and was widely used in the 1980s for home photography before digital photography. Many high street processors such as Max Spielman, and Snappy Snaps.
Slide film is difficult to obtain and usually very expensive to buy. However it will give you excellent bright colours for landscapes but you will need a slide projector to project the slide on a white screen.
Black and white film
As the name the suggests this film will give you results in grey scale with out colours. The film is processed in different chemicals to colour and slide films. However the chemicals used are by far the cheapest and can by bought to process your films at home.
Black and White film can be bought widely in 35 mm rolls on Ebay single and in bulk packs.
Landscapes - Usually the best results are taken with slide and Black and White films.
Portraits - Usually taken with Colour and /or Black and White which gives excellent tonal values. Ansell Adams's photograph The Tetons and the Snake River was one of the 115 images recorded on the Voyager Golden Record aboard the Voyager spacecraft. These images were selected to convey information about humans, plants and animals, and geological features of the Earth to a possible alien civilization
Sport - Colour and Black and White film is usually best for sports and you need high speeds to capture the shot. In film this is shown on the box by the speed of the film - ASA .
Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital imaging systems.