About 3,000 British entertainers participated in a Carnival-like protest march across London Tuesday to demand a financial break from Prime Minister Margaret Thatcher's government.

The mile-long procession from Hyde Park Corner to the Royal Opera House, Covent Garden, was organized by the actors' union, Equity, to protest cuts in government subsidies and an across-the-board increase in sales tax.

"the Scrooge-like cuts by the government will only worsen what is already a critical situation," said Sir Ralph Richardson, 76-year-old stage star and veteran of more than 42 British and Hollywood movies. "Live theater in British is acknowledged as the best in the world yet we are among the most under-subsidized."

Among the marchers were Susan Hampshire, star of the televiion series "The Forsythe Saga"; the London CAST OF Bubbling Brown Sugar"; tribal dancers from the South African show "Ipi-Tombi," and ballerinas from Salder's Wells.

Movie producer Jerry Weintraub denies accusations by gay rights groups that his new film, "Cruising" starring Al Pacino, is an anti-gay picture.

The movie fucuses on an undercover police officer, player by Pacino, who must stop homosexual murders in Greenwich Village, but who goes on a pyschopathic killing spree when he uncovers his own homosexuality.

Protestor showed up Thursday at the filming site Greenwich Village. Many people called the mayor's Office of Motion Picture and Television to demand a halt to the movie.

Bob and Shirley Johnson "always wanted to get married on a ride," so they tied the knot Monday in Harrington, Del. on the carnival ride, the Himalaya, a train of silver cars that twirl riders frontward and backward.

They were married by Kent County Clerk of the Peace Edith Hemphill, who called the ceremony "probably the most unusual I ever Performed."

Johnson, 36, and his 35-year-old wife forsook a honeymoon so they could return to work at the Delaware State Fair. They are veterans of more than 40,000 miles across the United States with the James E. Strates shows. Johnson has run the carnival's ape and girlie shows for the past nine years.

Leilani Kyono O'Melia, Miss Orient USA, says pageant promoters are cheating her out of $1,500, a three-week vacation in the Far East, a screen test in the Philippines and a root beer promotion contract.

O'Melia, 24, of Howell Township, N.J., says she will appear at the 1979 final judging Friday night in Long Beach, Calif. to claim her prizes or close the pageant down.

I've been very patient for a year, I've acted like a lady. I've had a lot of class about it," the reigning Miss Orient said Monday. "But I want to make sure all these young ladies know they're goint to ge ripped off."

President of the pageant, Remedios Cabacungan, says O'Melia will eventually receive what was promised her but, "Generally speaking, we do not have the money. She should know we are just starting." Cabacungan founded the pageant for young American women of Oriental ancestry two years ago. CAPTION: Picture, Susan Hampshire