Basically we have a black tie thing coming up shortly and over the years the black tie events I have been to have become more cocktail dresses - however due to £ and two children later the dress I have that fits/looks good is long, but I'm not sure if I am going to look wrong - it's not a ball just a dinner that's states black tie - I know no one going so can't ask and it's a new event so no idea of the norm here? But I know traditional black tie long dresses are fine but just having a wobble - any advice would be great...