Took my girlfriend at the time,now my goodwife,to the drive-in in bussleton WA, about 8 years ago.
Don't know if its still there or not, don't even remember what movie was showing.
It was a great night, kicking back in the front seats, radio tuned into the right station, no noise from people talking, no kids kicking the back of the seat, making out during the boring bits,it was great fun!
Sadly, very few drive ins around nowadays.