Conversation so far:
what silent films with Gary Cooper were made in 1925?
The Thundering Herd, Wild Horse Mesa.Riders of the Purple Sage, The Lucky Horseshoe and The Trail Rider.“
what other silent films with Gary Cooper were made in 1925?
The Eagle and  Ben-Hur.
did Gary Cooper win any awards for these Silent films released in 1925?
No.
what was Gary Cooper's greatest accomplishment?
Cooper was awarded a star on the Hollywood Walk of Fame.
did the movie Lilac Time with Gary Cooper succeed?
It became one of the most commercially successful films of 1928.

Question: what is the most important fact in this article?
Self-contained rewrite: what is the most important fact in the Gary Cooper article?