Blades of the Musketeers (1950)

In 1625 France, D'Artagnan joins the king's musketeers, meets three new friends - Athos, Porthos and Aramis - among them and, together, the four quickly find themselves embroiled in court intrigue with Prime Minister Richelieu attempting to sabotage the congenial relationship existing between France and England. Originally produced as a 60-minute episode of THE MAGNAVOX THEATER on CBS as THE THREE MUSKETEERS. This has the distinction of being the first movie specifically made for TV. Later retitled and released theatrically.