 Leigh became pregnant in 1956 and withdrew from the production of Coward 's comedy South Sea Bubble . The day after her final performance in the play she miscarried and entered a period of depression that lasted for months . The same year Olivier decided to direct and produce a film version of The Sleeping Prince , retitled The Prince and the Showgirl . Instead of appearing with Leigh , he cast Marilyn Monroe as the showgirl . Although the filming was challenging because of Monroe 's behaviour , the film was appreciated by the critics . 
 Leigh became pregnant in 1956 and withdrew from the production of Coward <a href='null_genetive' title='1'><mark>'s</mark></a>comedy South Sea Bubble . The day after her final performance in the play she miscarried and entered a period of depression <a href='null_relcl' title='2'><mark>that</mark></a>lasted for months . The same year Olivier<a href='been_done' title='3'><mark></mark></a> decided to direct and produce a film version of The Sleeping Prince , retitled The Prince and the Showgirl . Instead of appearing with Leigh , he cast Marilyn Monroe as the showgirl . Although the filming was challenging because of Monroe <a href='null_genetive' title='4'><mark>'s</mark></a>behaviour , the film was appreciated by the critics . 
Leigh became pregnant in 1956 and withdrew from da production of Coward  comedy South Sea Bubble . Tdaday after her final performance in thdalay she miscarried and entered a period of depression lasted for months . Thedame year Olivier been decided to direct and produce a film version of The sleepin Prince , retitled The dance and the Sdagirl . Instead of appearing w/ Leigh , he cast Marilyn Monroe as the shdairl . Although the filming was challenging cause of Monroe  behaviour , the film was appreciated by the critics .