Frankie Dettori and his pregnant wife Catherine watched the movie

The Queen's granddaughter Zara Phillips, herself a competitive horse rider, also attended the screening in London with her brother Peter and stepfather.

Monday's Leicester Square premiere attracted former champion jockeys Frankie Dettori and Richard Dunwoody.

Other guests included former Rolling Stone Bill Wyman and supermodel Jodie Kidd.

You guys are so much more horsey than we are Gary Stevens Top US jockey and star of Seabiscuit Full interview

The film is based on the true story of an undersized race horse during the US Depression which became a winner.

Based on Laura Hillenbrand's book, it stars Tobey Maguire and Chris Cooper.

The film has already been a hit in the US and has been tipped for success at next year's Academy Awards.

Hollywood actress Minnie Driver was at the screening

Director Gary Ross and jockeys Kieren Fallon and Tony McCoy also attended with three times Kentucky Derby winner Gary Stevens, who plays Seabiscuit's jockey George "The Iceman" Woolf.

In August, Stevens broke a vertebra and suffered a punctured lung when his mount, Storming Home, spooked near the line at Arlington, throwing him into the path of other horses.

Stevens said: "I feel this film might be bigger here than in the States, because of the huge following horse racing has. You guys are so much more horsey than we are.

Seabiscuit has already been a hit at the US box office

"We have done well against all odds - horse racing does not appeal to the general public over in the States."

The screening supported three racing charities - the Injured Jockeys' Fund, Retraining of Racehorses and Racing Welfare.