Solution to 3: The Poster
Each of these actors and actresses played a character in a movie with a colour, corresponding to the colour of their photo, in the title. The answer is the first letter of each of their characters' names.
Actor/Actress
Movie
Character
Samantha Bond
Goldeneye
Moneypenny
Derek de Lint
Soldier of Orange
Alex
Milla Jovovich
Ultraviolet
Violet
Léa Seydoux
Blue is the Warmest Color
Emma
Charlize Theron
Snow White and the Huntsman
Ravenna
Peter Firth
The Hunt for Red October
Ivan
Christoph Waltz
The Green Hornet
Chudnofsky
Anthony Chau-Sang Wong
Black Mask
King Kau
Rae Dawn Chong
The Color Purple
Squeak
MAVERICKS