The dress: Here's an incredibly glamorous dress from designer Elizabeth Fillmore.
The draped neckline is beautiful, the silhouette is sexy without being overbearingly so, and the ruffles down the back of the dress give it just the right amount of romance. Add some chandelier earrings, red lipstick, and you're set.
The hair: Charlize Theron's Hollywood waves would be an excellent complement to a dress like the one shown above. InStyle.com even gives you the how-to! If you've got longer hair, gentle waves and a faux bob might be a perfect 'do.
Color scheme: First find something to use as an inspiration piece. For an "old Hollywood" theme, keep it simple and classic. If you're stuck, browse around a fabric store and ask for swatches of fabrics you like. Black and white with hints of red, silver, or gold can create plenty of drama if executed correctly.
(Source)Other details: Deep red roses, white gardenias, or calla lilies would be an excellent bouquet choice for both you and your bridesmaids. For centerpieces, something structural would not only save you money, but they'd also give your reception some extra glam. Check out this amazing tableware from Juliska:
You could copy this look on the cheap, using old tableware found at yard sales and spray-painting them black. Adding white candles would look lovely, or filling the different-sized bowls with decorative mirrored balls would be fun too. Then, with your wedding guests dressed to the nines and sipping champagne, your wedding and reception will get rave reviews!