South 4th St, Williamsburg

South 4th street is probably the most happening of all of the south number streets in Willyburg and I find this so odd. Why don't South 1st, 2nd and 3rd have a bunch of businesses on them? Weird. Anyway, it makes South 4th one of the more ideal spots to live on because the rent is slightly cheaper than the north streets but there's more activity happening so it's convenient and a bit safer late at night. Conversely, it's a bit louder than the other south streets on nights and weekends but it just depends on what you like. Personally, I'll take a little street noise just so that I can walk home at midnight without my blood pressure skyrocketing, so I'm fond of South 4th.
Pies N Thighs opened up a couple of years ago on South 4th and it has been unbelievably popular. The name sounds like you're just asking to be obese but people go crazy for it. I'm sure the chicken is great but I've never tried it. My favorite thing about South 4th is the bar, The Woods. I love this place and I really don't care how many hipsters go there. It's an awesome bar. I just don't go there on weekends, but from what I hear, that's the time that it's out of control so it behooves most sane people to keep The Woods to a weeknight activity as well. There's another bar, aptly named South 4th Bar, right there, and it's not my favorite. But, it really helps to have options that are stumble and hop distance away, right?
Apartment dwelling is typical Williamsburg. There aren't gonna be the newer condos in the South 4th area. But, the rent will be slightly more accommodating and you can get a bit more space as you go further away from the L train. South 4th is a bit of a hike to both the L and JMZ trains. And, because that's such a massive pain, your rent should definitely reflect it. I would live on South 4th. It's not my favorite street in Williamsburg, but if you want to live by the Bedford stop, it's a pretty good street with a couple of things to do.

S 4th Street is one of those streets in Williamsburg that have not been completely gentrified. It still retains the atmosphere of a Hispanic neighborhood, with small delis all over the corners. I lived there for a while and enjoyed the familiar atmosphere. However, it is a quite anonymous street, particularly on the eastern side of the BQE.
The best part of the street where to move is between the East River and Havemayer St. After Havemayer St, S 4th becomes noisy and not too safe.

One of the best events held in Brooklyn annually is the Brooklyn International Film Festival. Typically held the first week in June, the film festival holds several daily viewings of independent films for $10, or $5 for children and seniors, and brings an amazing wealth of media, distribution companies as well as audiences to those who submit their films. It is amazing to be a part of the festival and see the dedication and imagination put into these works and the turn-out of the community.