Crossword clues for the word: WARNERBROS The word WARNERBROS has appeared as an answer to at least 2 crossword clues on different crossword puzzles. Crossword clues for WARNERBROS Showing 1 to 2 of 2 results Clue(s) Movie studio behind Rin Tin Tin and 'Casablanca' Their first studio opened in 1918