The Academy Awards or Oscars are the most influential of the multitude of film awards.
They are presented annually by the Academy of Motion Picture Arts And Sciences in the USA.
The winning of an Oscar can have a major impact on the commercial success of a film. 
However as with all such awards, there is always disagreement over the nominations and the winner.

Oscar winners and nominations 2000 to 2009
Oscar winners and nominations 1990 to 1999
Oscar winners and nominations 1980 to 1989
Oscar winners and nominations 1970 to 1979
Oscar winners and nominations 1960 to 1969
Oscar winners and nominations 1950 to 1959
Oscar winners and nominations 1940 to 1949

Dates for Oscars are based on the previous years USA release dates.
These may differ from the dates on this site which generally reflect UK release dates.