Special effects (Sb, p.105,ex.2)

earn the most money in the film industry.

are important because of changes in computer technology.

are more important than computer technology.

in front of dramatic fantasy backgrounds.

before the backgrounds were added.

with 'virtual actors'.

seemed to be really alive.

were made from small models.

were frightened of the cinema audiences.

all live in a "virtual forest".

are all human characters.

have very realistic faces.

films of the past.

the crowd scenes in Titanic.

drama schools.