If Mackintosh's current project, "Les Misérables" — scheduled to hit theatres Dec. 25 — pulls in $500 million or more at the box office, Mackintosh and Universal Pictures will lay the groundwork for "Saigon," according to the New York Post. 

"If Les Mis is a success then Miss Saigon will be made into a film. It isn't confirmed at this point but there are many people sniffing around and offers coming in," Mackintosh said in a previous interview with the Telegraph.

The film of Les Misérables, starring Hugh Jackman, Anne Hathaway and Russell Crowe, has been nominated for four Golden Globe Awards, including Best Motion Picture - Musical or Comedy, and is generating significant Oscar buzz prior to its official release.

In 2009 it was reported that "Precious" director Lee Daniels had Miss Saigon on his film wish list. Film producer Paula Wagner was also said to be working on a deal with Mackintosh at the time.

Schönberg and Boublil collaborated with Richard Maltby, Jr. on the 1989 musical Miss Saigon, which took inspiration from the Puccini opera Madama Butterfly. Set during the fall of Vietnam, the musical centers on an American G.I. and a young Vietnamese prostitute who fall in love against the backdrop of the war. When Saigon falls and the Americans pull out, the young woman is left behind.

Miss Saigon premiered on Broadway in 1991, earning Tony nominations for Best Musical, Best Book, Best Score and earned Tony Awards for Best Actor (Jonathan Pryce), Best Actress (Lea Salonga) and Best Featured Actor (Hinton Battle).