His Girl Friday

Classic fast-talkin' comedy with Cary Grant and Rosalind Russell, based on The Front Page. NB: the film's copyright date is 1939, not 1940.

Update: The Google Video version gets out of synch, which for this screwball verbal slapstick is worse than usual. Watch it by clicking the title to this post; download it to be sure to get synched a/v.