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Iconic Star Trek actress Nichelle 'Lt Uhura' Nichols boldly filmed a time capsule video to prevent her family stopping her attending the conventions that are her life-blood.

The emotional footage, shot in 2013, shows Nichols, 85, who is suffering from dementia, reveal her son Kyle Johnson, 66, did not believe she should continue working.

Five years on, the star still attends conventions around the world, including Comic-Con in San Diego in July and Star Trek Las Vegas this week.