The American actor plans to spend the early hours of Friday shooting a full-length film, called "Lost In London LIVE," which will be broadcast as it happens in over 550 U.S. theaters. Based on a relentlessly awful night out he really had in the British capital, Harrelson wrote and is directing the film that combines comedy and drama. Harrelson's co-stars are musician Willie Nelson and actor Owen Wilson, a close friend who also helped refine the script. Harrelson's breakthrough as an actor came on the 1980s television sitcom "Cheers."