Question
Hi, I live in a condo that is 2 levels. The upper level has a balcony/deck that is very close to my neighbors decks out back. Any suggestions on plants tall and thick enough to block their view of me on my deck. I would need plants that are movable if possible. The railing is about 4 feet high so I need plants rises another 4 feet higher to get good privacy.

Thanks

Answer
Maybe a box-planter lattice with some fragrant vines?  You didn't mention your area, and plant selection and performance are very regional.  You also didn't mention orientation - Shade, Sun, etc.?

I'd suggest you visit your local nursery that may be able to suggest a nice variety of vines & verticle evergreens appropriate for a balcony setting and planter size.

Here is a cute little lattice/box combination you can make (with wheels!):
http://www.pbs.org/wgbh/victorygarden/grow/primers_projects/planter.html

Here is another, if you just want to buy one instead of build one: http://www.cedarstore.com/detail.aspx?ID=865

Good luck!  ~M