Common Sense Note
Parents need to know that Cheerful Weather for the Wedding is anything but cheerful. A large group of family members and assorted friends gathers for a young woman's marriage in post-WWI England, an event that she seems to be anticipating with dread. Expect plenty of interpersonal conflict as characters act on their various motives (which aren't always pure). There's also lots of drinking (accurate for the era), and some characters get pretty tipsy. There are also some passionate kissing and veiled references to characters' sexual histories, though little is said directly.
A couple kisses passionately, and there are a few veiled allusions to a woman's sexual history.
Some intense emotional arguments.
True love may not always win out; Joseph and Dolly seem to share a romantic connection, but it's not clear that this bond will be enough to bring them together -- not when she's just hours away from marrying someone else.
Drugs / Tobacco /
The wealthy characters drink steadily all through the film, including wine, champagne, and scotch. The bride pulls repeatedly from a jug of rum to steel her nerves.