Watch Andrew Marr's The Making of Modern Britain Season 1 Episode 4 Online

In the 1920s, Imperial Britannia was sliding from view and a more modern Britain tried everything new and asked endless questions about how we should live our lives. A great new age of experiment arrived in politics, writing, art, sex and drugs. Survivors of World War I threw themselves into the new urban scene of nightclubs, cocktails and jazz, where royalty, gangsters and Hollywood stars rubbed shoulders with new money.