Olly Robbins is perceived to be opposed to Brexit, according to behind-the-scenes footage for a BBC documentary

Britain’s chief Brexit negotiator told his counterparts in Brussels that he wanted to become an EU citizen after Brexit, behind-the-scenes footage for a BBC documentary reveals.

Olly Robbins, Theresa May’s chief EU advisor, said that he would like to take EU citizenship after Brexit, Guy Verhofstadt, Brexit co-ordinator of the European parliament, told the BBC documentary Brexit: Behind Closed Doors, which continues tonight.

“Olly Robbins came to me and said ‘Guy, can I become a Belgium citizen after this whole thing because I don’t think I will return,” Mr Verhofstadt is recorded telling the programme.

The comment, even if meant as a joke, will infuriate Brexiteers and fuel the perception that Mr Robbins was opposed to Brexit. It will also be seen as evidence that