With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Valerian and the City of a Thousand Planets features an actor.
text_B: Starter for 10 is a 2006 British comedy-drama film directed by Tom Vaughan from a screenplay by David Nicholls , adapted from his own novel Starter for Ten .. Tom Vaughan. Tom Vaughan ( director ). David Nicholls. David Nicholls ( writer ). comedy-drama. comedy-drama. Starter for Ten. Starter for Ten ( novel ). The film stars James McAvoy as a university student who wins a place on a University Challenge quiz team .. James McAvoy. James McAvoy. University Challenge. University Challenge. It premiered at the Toronto International Film Festival in September 2006 , and was released in the UK and Ireland on 10 November 2006 , and in Canada and the US on 23 February 2007 .. Toronto International Film Festival. Toronto International Film Festival
not_related.