Sorry, Breguet, but the 1927 epic "Wings" did not star Fred MacMurray, but the 1938 movie "Men with Wings" did, along with Ray Milland and Andy Devine. "Men with Wings" was also directed by William 'Wild Bill' Wellman, and has the advantages of early technicolor and sound ("Wings" is silent and b/w). "Men with Wings" attempts to tell a fictitious story of the entire development of aviation, and has only a short WWI dogfight sequence. "Wings" has much more air combat footage, and is really quite amazing for its time. It includes an attack on a big German "Gotha" (really a Martin Bomber, IIRC) and a German balloon, along with terrific strafing scenes, etc etc.
By the way, Fred MacMurray climbed back into a WWI fighter plane as Rickenbacker in the 1945 film "Captain Eddie", which I saw once on late-night TV and is a real disappointment. It concentrates on his experiences on the life raft in WW2, and his WWI story is told in a very brief flashback with no original footage.
A personal favorite of mine is "Eagle and the Hawk" (1933), which starred Fredric March as a troubled American pilot in a British two-seater squadron (flying a big DH 4) who gets lots of medals but keeps coming back with dead observers. He also has a quarrel with observer Cary Grant, who he had washed out of pilot training when he was an instructor. Some of the combat scenes include footage lifted from "Wings" and "Dawn Patrol". The script was co-written by Bogart Rogers
, who was a real honest-to-goodness fighter ace who had flown SE5a's in NO 32 Squadron. Rogers had been instructed by McCudden while he was in training at Ayr, and obviously greatly impressed by him (see "A Yankee Ace in the RAF", a compilation of his letters). The movie includes encounters with a great German ace called "Greentail", and when March finally shoots him down, they find out the dead pilot is "Voss" !!
There was a whole slew of WWI aviation-related movies in the 30's, many of which simply used leftover footage from "Hell's Angels" and other earlier flicks. One of these is "A Crimson Romance", which has Erich von Stroheim doing his patented portrayal of a nasty German aristocratic officer. Another decent one is "Ace of Aces" - not for the terrible acting by Richard Dix, but some pretty good flying scenes. "Suzy" (1936) is pretty good and available on VHS, I think; it starred Jean Harlow, Franchot Tone, with Cary Grant as a cad of a French air ace. "The Story of Vernon and Irene Castle" (1939) stars Fred Astaire and Ginger Rogers as the famous dance team, and includes a little on Castle's career in WWI (he takes photos of the enemy trenches from an SE5a!) and his death while training pilots.
There was a silent film entitled "Lilac Time" which starred Gary Cooper, and is also one of my favorites.
Don't forget that the 1938 "Dawn Patrol" was a virtual scene-for-scene remake of the original 1930 version. The original starred Richard Barthelmes and Douglas Fairbanks, Jnr, and was directed by Howard Hawks. The remake used all of the aerial footage shot for the original, and is better known because it had the star power of Errol Flynn, David Niven and Basil Rathbone.