"Hollywood Canteen" is a throwback to the all-star musicals of last spring. In a belated sequel to "Thank Your Lucky Stars," Warners' has thrown together 62 stars from Jack Carson to Joseph Szigeti in a lengthy series of songs and dances.

The movie's chief claim to fame is Cole Porter's popular "Don't Fence Me In," but the producers accentuate the negative by having Roy Rogers and the Andrews Sisters sing it.

Movieland evidently didn't realize the smugness of "Four Jills in a Jeep" for here again the cinemagnates proudly pat themselves on the back for their efforts. Through the entire picture there is an endless account of how hard Hollywood has worked to set up the canteen and how wonderful it is. The self-praise reaches its peak when the usual representative of Flatbush praises the canteen with, "Dat's real democracy for ya; all dem big shots listening ta us little shots . . ." and so on.

The plot, like something out of Arabian Nights, takes Robert Hutton, amorous Yale man in "Janie," rapidly from New Guinea, to the Hollywood canteen, the arms of Joan Leslie, and almost the altar, before a troop train arrives to carry him off. The story's main excuse is to try to form a link between the musicalia, which appear every ten minutes. Like "Thank Your Lucky Stars" and "Thousands Cheer," this movie is just an unoriginal variation on the star parade theme.