The United Nations criticised Thailand’s junta for detaining people caught throwing a three-fingered protest salute inspired by ‘The Hunger Games’ movies, as the prime minister warned that people using the defiant gesture could ‘jeopardise their future’. The salute has become the unofficial symbol of resistance against the army’s May coup with scores detained for using it, including six students this week. The same gesture is used in the fictional Hollywood blockbuster franchise by rebels fighting against a dictatorial regime. General Prayut Chan-O-Cha, the prime minister, said he felt unthreatened by such protests but warned those caught using the gesture risked creating problems for themselves.