One of the best potpourris in recent film history, "A Yank in the R.A.F." offers exciting glimpses of the bombing of Berlin, the evacuation of Dunkirk, and the conquest of Grable all three feats performed by Tyrone Power without so much as messing his coiffure. The supporting cast, sparked by Reginald Gardiner as an R.A.F. volunteer from the upper crust who is just bored with it all, give sparkling comedy performances; and a horde of extras with wonderful technical direction pack conviction into the military scenes.

Far from the type of epic war picture that "All Quiet on the Western Front" or "What Price Glory" were, this show is a quickle whipped out just in time to catch some publicity from the first stages of the war. Tyrone Power enlists in the R.A.F. primarily to show off a smart uniform to chorine Betty Grable. She can't choose between plain love from Tyrone and love with a ring from his commander. Miss Grable's acting still isn't as much above par as her legs, but she is improving rapidly. Power has added a wicked leer to his own somewhat dramatic achievements.

"Sing Another Chorus," despite its many defects, doesn't have a single redeeming feature. Poorly constructed and weakly east, it started out with two strikes and the direction added a third. Mischa Auer tries so hard to be funny that he isn't. Proper timing will permit you to escape this and still catch an excellent cartoon and Endicott Peabody II on the Movietone News All-American.