Troubled Production: The show went on to be a hit, but its pre-Broadway tryout suffered serious troubles. The opening performance in Boston was practically a fiasco. Feuds arose between Barbra Streisand and Sydney Chaplin, and between everyone and the notoriously temperamental Jerome Robbins when he took over from credited director Garson Kanin. Ghostwriters struggled to keep up with rewrites demanded by Streisand and the Arnstein family (the show's producer was Nick Arnstein's son-in-law). Chaplin's part became equal to Streisand's in billing only; a secondary female role played by Allyn Ann McLerie was written out entirely. Dozens of songs were thrown out ("People" almost becoming one of them), and dance routines were in a constant state of flux. The final scene was rewritten 42 times, and its final version was being rehearsed immediately prior to the Broadway opening, which had been repeatedly postponed.
Banned in China: The film was banned in Egypt because of the romance between Omar Sharif (who was Egyptian) and Barbra Streisand (who is Jewish).
Romance on the Set: Barbra Streisand and Omar Sharif had an affair that lasted for the duration of the production. This would contribute to the end of her marriage to Elliott Gould. William Wyler, who knew about the affair, tried to channel their real-life chemistry into their performances. During the "My Man" number, Wyler had Sharif stand behind a nearby curtain and talk to Streisand between takes. Their affair was ending as the shoot came to an end, and Wyler knew that Sharif's presence would have an effect on her performance.
Wag the Director: According to some reports, Barbra Streisand was constantly late to the set, would ask to re-shoot scenes that were already done, and try to control every aspect of the production, from the lighting design to what sort of shot was needed to who did her hair. William Wyler was asked by a friend whether she had been hard to work with. He replied, "No, not too hard, considering it was the first movie she ever directed."