Every Friday night, at Midnight, for the past 30 years, an interactive viewing of The Rocky Horror Picture Show has taken place somewhere in the world, making it the longest running theatrical release in film history. San Diego's Rocky Horror version is shown at the La Paloma Theatre in Encinitas.

Rocky Horror is a rock-musical spoof of old science-fiction and horror films staring Tim Curry and Susan Sarandon. A live cast accompanies the cult classic making it more of a theatrical than cinematic event.

Rocky Horror is the first and only true participation movie. People yell back lines at the screen during the extended dialogue pauses, dress-up in tribute costume, act out the script, and throw props on stage, and in the air, throughout the film.

If it's your first time seeing the RHPC in a theater you are considered a "virgin" and may be asked to participate in a virgin ritual. Don't worry; it's all in good fun. If you really don't want to participate simply point to the person next to you and inform the cast they are a "virgin" as well, thus removing yourself from under the bus, replacing your now-former friend in your stead.

Upon your subsequent returns you can then bring the props you saw everyone else parading the last time. These can range from rice to water, toast, and newspapers. The props and participation differ in every city and every venue.

Bring a crowd of friends, have a few preparatory drinks and plan to stay out all night. Post-game 24 hour diners and taco shops (Filiberto's) are all part of the experience.

The San Diego Rocky Horror Picture Show at La Paloma Theatre is only $8 and is located at 471 South Coast Highway in downtown Encinitas.

Insider Tip: Whenever you hear the name Brad Majors, yell "A-HOLE."