Definition: Generate an appropriate title for the given text. The generated title must be short and include the main topic of the text. The preferred titles are under fifteen words.
Input: The actor had advertised for people wanting work as "paid extras" to show up at a London location to learn a "bit more about the project". Footage on Twitter seems to show massive crowds pushing to get in. In a video posted on Instagram, Idris Elba thanks people for coming down but says he's been advised to cancel "because of the numbers". Twitter user Mr Woods posted a video from the scene. You can watch it here. Mr Awofedeju also uploaded footage. Idris Elba made his name in shows like The Wire and Luther. As well as acting, he's also a DJ. The event was originally advertised as an opportunity to work on a film "set in the Afro-Caribbean community in Hackney, 1983". This is the casting call notice. But London's Metropolitan Police tells Newsbeat that officers were called at around 6pm to reports of trouble. "Officers attended the location and spoke with staff," a spokesperson said. "The planned event - an audition - has been cancelled by the organisers following discussion with police." Jaxx was one of those who showed up. She tweeted: "The police said no! Idris Elba's casing call was a no! Waited for 1.5hrs for nothing! #idriselbacasting #idriselba". Twitter user Shortcrust Pie also posted a video. Stefan Baisden Tweeted estimating that "900 people" were waiting. "I got there at about quarter past five or so, I thought I would be halfway down the line," Jaxx, who's the director of a language agency, told Newsbeat. "By the end of it there must have been a couple of thousand people there. "People, I guess, were a bit sad when it was cancelled but I didn't see anyone kicking off or anything." Idris Elba has responded in his own video. You can watch it on Instagram. "The response for the open casting has been unbelievable. Thank you so much for sharing the info and for coming down," the actor said. "We've only got until nine o'clock and already I'm asked to shut it down because of the numbers." He went on to say "for those guys who are standing in the cold, big up big up", and suggested people send in headshots instead of showing up in person. Find us on Instagram at BBCNewsbeat and follow us on Snapchat, search for bbc_newsbeat

Idris Elba open casting 'shut down' after too many people show up