The announcement was made Tuesday by Dan Fellman, Warner Bros. Pictures' president of domestic distribution.
Among the films that helped the studio reach the milestone were The Hobbit: The Desolation of Smaug, The LEGO Movie, 300: Rise of an Empire, Godzilla, Edge of Tomorrow and Tammy.
"This is a proud day for our studio," Fellman said in a statement. "To cross such an extraordinary milestone once again is a direct reflection of the high standards and incredible efforts of the dedicated and creative individuals at work here, both on and off the screen. We still have an exciting roster of films yet to open this calendar year and, together with the talented teams bringing them to the theater, we look forward to continued success."
Still to come in 2014 from Warner Bros. Pictures are Into the Storm, If I Stay, Dolphin Tale 2, This is Where I Leave You and Annabelle.