A Place to Share some Trivia

When filming Ben-Hur, Charlton Heston had to re-shoot a scene for a western he had done before (co-starring Gregory Peck I think-never seen it, I'd like to see them in a movie together).
He had to fall down and die, so the shot was re-done in the middle of the Roman racing arena set. Sergio Leone was a crew man on the film so his first western film shoot was in which Charlton Heston, dressed as a cowboy, falls down and dies in a Roman coliseum.

20th Century-Fox's Woman's World (1954)

Van Heflin, Cornel Wilde, Fred MacMurray and Clifton Webb. Just above Webb. you'll notice a small recreation of the portrait from 20th's 1944 Laura. 
 

Some of my favorites, trotted out on prior occasions, but worth collecting on a specialized thread:

 - In 1933, a young English actor began his film career under his birth name, but by the time he began getting screen billing, an American actor of the same name had become world famous. So London-born James Stewart became professionally known as Stewart Granger. 

 - Byron Barr began his film career in 1940 and made a dozen appearances under that name. In 1942's The Gay Sisters, he played a character named Gig Young, and liked the name so much that he adopted it professionally. The following year, Double Indemnity began production with a young actor making his screen debut as the character Nino Zachetti. His name: Byron Barr.

 - Something for the tech-heads: the much-beloved Three-Strip Technicolor process (known within the corporation as System 4) captured its images on black-and-white negative stock. With the light entering the lens split into primary colors by a prism, each of the three b&w negatives captured only the light corresponding to its assigned primary color. It was only in the printing process that actual colors were applied, with dyes corresponding to each primary color transferred to the positive print to recreate a full spectrum.

 - The famed Cinerama Dome theater in Hollywood never exhibited a first-run film shot in Cinerama. The last feature utilizing the true 3-lens/3-negative Cinerama system was How the West Was Won. Beginning with It's A Mad, Mad, Mad, Mad World, which premiered at the Dome in Nov. '63 a year after HTWWW's premiere, all films "Presented In Cinerama" were shot on single 65mm negatives with standard single-lens cameras, and projected on 70mm prints specially rectified in the lab for the curved Cinerama screen.

          

After filming Mrs. Miniver, Greer Garson married her son (from the movie). Richard Ney who was 12 years younger than her.
Was this a case of screen incest? Inquiring minds want to know.

This isn't a rumor and I haven't checked on this but a few months ago I saw this movie and have to believe that this was an inspiration.

The Man Who Laughs- 1928

And speaking of borrowed screams...

In An Affair To Remember you hear a woman scream when Deborah Kerr has her accident.  Three years later, 20th Century Fox went to their vaults and pulled out that scream for Journey To The Center Of The Earth, passing it off as Arlene Dahl's reaction to a giant lizard's long descending tongue at the film's climax.