A man who screamed abuse at Usain Bolt before hurling a beer bottle at the start line of the men's Olympic 100m final told police he was the Scottish actor Alan Cumming, a court has heard.

Ashley Gill-Webb, 34, pushed his way to the front of an exclusive seating area at the Olympic Stadium without a ticket, said "Usain you are bad" and shouted an obscenity at him, Stratford Magistrates' Court was told.

The man is alleged to have then thrown a bottle as the Jamaican sprinter won in 9.63 seconds on August 5.

Gill-Webb, from South Milford, near Leeds, was confronted by Dutch judoka Edith Bosch, then restrained by Olympic volunteers and arrested by police.

Gill-Webb's DNA was later found on the bottle and it was shown on TV landing on the start line. Gill-Webb was caught on images throwing it, the court heard.

Detective Constable Kevin Guest told the trial that Gill-Webb made "no comment" answers when he was questioned, as well as a prepared statement signed "Alan Cumming", and suggested to police that he was the actor.

He denies intending to cause 100m finalists harassment, alarm or distress by using threatening, abusive or disorderly behaviour and causing other spectators alarm or distress.

Prosecutor Neil King said the Games had reached a highlight with the men's 100m final.

He said: "In the stadium, along with the many thousands who should have been there legitimately and were watching the race in hushed anticipation, was also Mr Gill-Webb who it is now accepted was unwell at the time.

"His conduct at the time however, the Crown say, was one that was causing harassment, alarm and distress to those around him.

"He was mingling with members of the Dutch Olympic team. Indeed he would be within striking distance of a bronze medallist, Ms Edith Bosch.

"While there he hurled abuse towards the athletes in the final, particularly towards the eventual winner, Usain Bolt."

He said Gill-Webb threw a bottle in the hushed stadium just as the race was about to get under way.

He said: "This bottle landed close to the athletes and it's probably luck rather than Mr Gill-Webb's judgment that it did not do anything far more serious."

In a statement, Ms Bosch described how she was in a seat one row back from the front, and Gill-Webb pushed past her to get to the row in front of her.

She said: "I saw him begin to shout towards where the competitors were lining up to start the race.

"He was shouting specifically at Usain Bolt. Things like, 'Usain I want you to lose, Usain you are bad.

"He repeated these taunts over and over, it went on and on for about two minutes."

She described a volunteer approaching Gill-Webb and summoning him back to his seat, which she said seemed to make him angry. She said: "He was still looking towards where the athletes were lined up to start the race.

"At this point I saw the man in front of me move his arm back behind his head and then forwards in a throwing motion.

"I then saw a bottle hit the track, it was a green Heineken bottle.

"I had seen the man in front of me previously holding a Heineken bottle so even though I was focused on looking at something else, he was right in front of me."

Security guard Robert Spears grabbed Gill-Webb and helped escort him away.

He said: "At no point did he ever try to explain himself or deny what I had seen, but just demanded to know who had won the race."

The court heard Gill-Webb was later sectioned and has also since lost his job.

The case was adjourned until January 11.