Question: Which actress was married to Val Kilmer and starred in a film based on a David Hare play?
Context: Wonderland is a 2003 American crime drama film, co-written and directed by James Cox and based on the real-life Wonderland Murders that occurred in 1981.  The film stars Val Kilmer, Kate Bosworth, Dylan McDermott, Carrie Fisher, Lisa Kudrow, Josh Lucas, Christina Applegate, Tim Blake Nelson, and Janeane Garofalo.  Kilmer plays the role of John Holmes, a pornographic film star and suspected accomplice in four grisly murders committed in an apartment on Wonderland Avenue, in the Laurel Canyon section of Los Angeles.  Mr. Holmes was famous for playing the role of "Johnny Wadd" in a related series of pornographic adult films. MacGruber is a 2010 American action comedy film based on the "Saturday Night Live" sketch of the same name, itself a parody of action-adventure television series "MacGyver".  Jorma Taccone of the comedy trio The Lonely Island directed the film, which stars Will Forte in the title role; Kristen Wiig as his love interest/partner, Vicki St. Elmo; Ryan Phillippe as Dixon Piper, a young lieutenant who becomes part of MacGruber's team; Maya Rudolph as MacGruber's dead wife, Casey; and Val Kilmer as the villain, Dieter von Cunth. The Fourth Dimension is a 2012 independent film composed of three segments all created by different directors.  In 2013 VICE Films worked with Grolsch Films Works to produce the film, which starred Val Kilmer and Rachel Korine. Palo Alto is a 2013 American drama film written and directed by Gia Coppola, based on James Franco's short story collection "Palo Alto" (2010).  Franco stars, along with Emma Roberts, Jack Kilmer, Nat Wolff and Zoe Levin.  Jack Kilmer's father, Val Kilmer, also appears briefly in the film as Stewart, Emma Roberts' stepdad. The Traveler is a 2010 horror film directed by Michael Oblowitz, written by Joseph C. Muscat, and starring Val Kilmer and Dylan Neal.  Kilmer plays a stranger who walks into a small town's police station, confesses to murder, and is interrogated by detective Alexander Black (Neal). Joanne Whalley (born 25 August 1964) is an English actress who began her career in 1974.  She has since amassed numerous credits, primarily on television, but also in nearly 30 feature films, including "Dance with a Stranger" (1985), "Willow" (1988), "Scandal" (1989), "The Secret Rapture" (1993) and "Mother's Boys" (1994).  Following her marriage to Val Kilmer in 1988, she was credited as Joanne Whalley-Kilmer until their divorce in 1996. The fictional superhero Batman, who appears in American comic books published by DC Comics, has appeared in various films since his inception.  Created by Bob Kane and Bill Finger, the character first starred in two serial films in the 1940s, "Batman" and "Batman and Robin".  The character also appeared in the 1966 film "Batman", which was a feature film adaptation of the 1960s "Batman" TV series starring Adam West and Burt Ward, who also starred in the film.  Toward the end of the 1980s, the Warner Bros. studio began producing a series of feature films starring Batman, beginning with the 1989 film "Batman", directed by Tim Burton and starring Michael Keaton.  Burton and Keaton returned for the 1992 sequel "Batman Returns", and in 1995, Joel Schumacher directed "Batman Forever" with Val Kilmer as Batman.  Schumacher also directed the 1997 sequel "Batman & Robin", which starred George Clooney.  "Batman & Robin" was poorly received by both critics and fans, leading to the cancellation of "Batman Unchained". The Secret Rapture is a 1993 British drama film directed by Howard Davies and starring Juliet Stevenson, Joanne Whalley-Kilmer, Penelope Wilton, and Neil Pearson.  The screenplay by David Hare is based on his 1988 play of the same title. The Island of Dr. Moreau is a 1996 American science fiction horror film, the third major film adaptation of the 1896 novel "The Island of Doctor Moreau" by H. G. Wells.  The film was directed by John Frankenheimer (who was brought in half a week after shooting started) and stars Marlon Brando, Val Kilmer, David Thewlis and Fairuza Balk.  The screenplay is credited to the original director Richard Stanley and Ron Hutchinson. Twixt is a 2011 experimental horror thriller film written, directed, and produced by Francis Ford Coppola starring Val Kilmer, with Bruce Dern, Elle Fanning, Ben Chaplin, Alden Ehrenreich, David Paymer and Joanne Whalley in supporting roles.  The film premiered on September 4, 2011 at the Toronto International Film Festival and was screened at various film festivals in North America, receiving a limited theatrical release in a handful of International markets.  The film's title, "Twixt", refers to the two worlds explored in the film, the dream and the waking worlds.
Answer: Joanne Whalley