Citywalk at Universal Studios is doing their annual Hot Summer Nights promotion. Personally I think the best night is Thursday, which is movie night.
Universal CityWalk - Event Calendar - CityWalk Events
The schedule for this year is as follows:
July 2 - 7:30pm - Mamma Mia!
July 9 - 7:30pm - Iron Man
July 16 - 7:30pm - Kung Fu Panda
July 23 - 7:30pm - Hotel For Dogs
July 30 - 7:30pm - The Goonies
August 6 - 7:30pm - Madagascar: Escape 2 Africa
Featuring a meet and greet with costumed character, Alex The Lion prior to the movie. Be sure to see visit the Madagascar characters at Universal Studios Hollywood.
August 13 - 7:30pm - Grease
Featuring costumed dance entertainers.
August 20 - 7:30pm - Hannah Montana: The Movie
August 27 -7:30pm - High School Musical 3: Senior Year
Featuring costumed dance entertainers
Other events are listed on the citywalk main page:
Universal CityWalk - Overview - Welcome to CityWalk
I think it'd be AWESOME to set up a meet for The Goonies and/or Grease.