Indeed it was Jack Warner of Warner Brothers. Julie Andrews had starred as Eliza Doolittle in My Fair Lady on stage and hoped to be cast in the film when Warner Brothers bought the rights. However, Jack Warner wanted a big name so chose Audrey Hepburn, leaving Andrews available to be cast by Walt Disney in Mary Poppins, which garnered her many awards. She ended her speech after being given the Golden Globe for Mary Poppins by saying, “And, finally, my thanks to a man who made a wonderful movie and made all this possible in the first place, Mr Jack Warner.” Touché.
To you to script the next question.