The phrase "picture winner" refers to a movie that has won or been awarded a prize or recognition for being the best or most outstanding film. Full definition
There are certainly formulas which have proven to be successful for Best Picture winners as well as Best Actor and Actress. (sportsinsights.com)
Get Out would be the highest - grossing Best Picture winner in a decade. (slate.com)
With less than $ 40 million in domestic box office gross, so far, Spotlight is one of the lowest - grossing Best Picture winners of the past several decades. (fortune.com)