Donald LeRoy LaFontaine was an American voice actor who recorded more than 5,000 film trailers and hundreds of thousands of television advertisements, network promotions, and video game trailers over four decades.
Don LaFontaine in 2007
A trailer is a commercial advertisement, originally for a feature film that is going to be exhibited in the future at a movie theater or cinema. It is a product of creative and technical work.
Frame from the 1956 trailer for the war film Attack!
Walt Disney in a 1937 color trailer for the animated musical fantasy film Snow White and the Seven Dwarfs
Screenshot from film trailer for 1959 North by Northwest