Okay, I've threatened to make one ever since I found out about this forum so here we go....
This is my outdoor driveway movie theater. I have rather large and fairly flat driveway and I decided to install the ht there for a few reasons:
1. The house holds back the wind from the bay so no one overly freezes as they would if the ht was in the backyard and
2. The large expanse of driveway allows me to add or reduce the size of the venue as I see fit.
Everything I used to create this was either given to me as a throwout, or bought on craigslist. Being the resident cheapskate of this forum, this is the overall look of the theater.
Wiring: paid $7 for a 500ft spool 8 yrs ago, so currently worth nothing
Playback : Portable dvd player bought on craigslist for $10
Projector: NEC MT820 also bought on craigslist for $10.00
Speakers: No name flea market stuff, but 6" subwoofer is from a SOny HTIB and is powered by an Partsexpress sub amp (all free)
Driveway venue space measures 25x60 ft give or take. The pavers are a nice touch and as an added bonus, little kids can play inside the garage if it gets too cold outside.
Screen will be mounted on the metal fence and is made of 3 or 4 panels of 48"x81" 1" thick cardboard. This isn't your usual box-material cardboard. It more like rigid panels of two cardboard sheets with a 1" thick honeycomb pattern sandwiched between. This makes the panel very stiff but also very light. I am going to paint the cardboard with white paint (free) but if the material begins to warp, I may end up using wooden 1/8" mdf sheets. Again, I got these from work free.
Anyways, here are some pics
Driveway

Fence closeup

Rear spkrs

Front speakers mounted

Closeup of front speakers

My 1st attempt, which failed as you can see (to be honest, looking back at it the image would have been better if I made it more taut. I was able to on one pic but ultimately, I was pretty sure the wrinkles would have been too much

More pictures to come