What movie is Barbra most successful?

Barbra Streisand's most successful movie, in terms of box office gross, is "A Star Is Born" (1976). The film, which also starred Kris Kristofferson, grossed over $177 million worldwide against a budget of $11 million, making it the highest-grossing musical of all time until "Grease" (1978) surpassed it two years later.