I'm in. After a good period of research, I came up with . . . . . .The Longest Day, Dewey Martin, Patrick Jordan and Michael Medwin, all born in 1923! Then before posting I looked again and shitbox if it ain't already taken. 12 million movies out there and someone finds the same one I did. Oh well, going with my backup then:
A Bridge Too Far, 1977
Sean Connery 1930
Gene Hackman 1930
Ryan O'Neal 1941
It's a longshot, but at least the actors are all household names.