I think I agree with Pab. They've been adapting movies into stage musicals very regularly and successfully since the 60s:
Sweet Charity (1966 -- Nights of Cabiria)
Promises Promises (1969 -- The Apartment)
Zorba (1969 -- Zorba The Greek; it was a novel first)
Applause (1970 -- All About Ave)
Sugar (1973 -- Some Like It Hot)
Shenandoah (1975 -- Shenandoah)
On The Twentieth Century (1978 -- Twentieth Century; play and movie)
42nd Street (1981 -- 42nd Street)
Woman of the Year (1981 -- Woman of the Year)
Nine (1982 -- Fellini's 8 1/2)
La Cage Aux Folles (1984 -- play and movie of the same name)
Big Deal (1986 -- Big Deal on Madonna Street)
Grand Hotel (1990 -- Grand Hotel)
Meet Me In St. Louis (1990 -- Meet Me In St. Louis)
Kiss of the Spiderwoman (1993 -- film and novel of the same name)
The Goodbye Girl (1993 -- The GOodbye Girl)
Tommy (1993 -- film and concept album of the same name)
Passion (1994 -- Passione d'Amore)
Beauty and the Beast (1994 -- animated film of the same name)
Sunset Boulevard (1995 -- Sunset Boulevard)
"What a story........ everything but the bloodhounds snappin' at her rear end." -- Birdie
[http://margochanning.broadwayworld.com/]
"The Devil Be Hittin' Me" -- Whitney