Madonna played the character Gloria Tatlock in a 1986 British adventure comedy film that became a box office flop. What was it called?

Explanation

Madonna began her film career in 1979 in the low budget feature "A Certain Sacrifice" which was commercially released in 1985. She has since then starred in numerous movies including "Desperately Seeking Susan" (1985), "Vision Quest" (1985), "Shanghai Surprise" (1986), "Who's That Girl" (1987), "Bloodhounds of Broadway" (1989), "Dick Tracy" (1990), "Shadows and Fog" (1991), "A League of Their Own" (1992), "Body of Evidence" (1993), "Dangerous Game" (1993), "Evita" (1996), "The Next Best Thing" (2000), "Swept Away" (2002) and "Arthur and the Minimoys" (2006).