Let's Make It Legal (1951)

The divorce of Hugh and Miriam Halsworth becomes final at midnight. Hugh wouldn't dream of calling it off, but can't abandon his rose garden. Things change that afternoon when Miriam's old suitor Victor MacFarland checks into the hotel where Hugh is publicity man. With Miriam's daughter Barbara rooting for Hugh and son-in-law Jerry rooting for Victor, things are unlikely to be resolved by midnight.