The 21-Second Excitation

"The 21-Second Excitation" is the eighth episode of the fourth season of the  The Big Bang Theory. This episode first aired on November 11, 2010.

Summary
Sheldon, Leonard, Raj, and Howard excitedly plan to attend a screening of Raiders of the Lost Ark that includes 21 seconds of never-before-seen footage; however, their plans go awry when Sheldon's nemesis, Wil Wheaton, shows up at the theater. Meanwhile, Penny hosts a girl's night party at her apartment with Bernadette and Amy who invited herself to the party and begins to bond with them.

Extended Plot
Sheldon, Leonard, Raj, and Howard excitedly plan to attend a screening of Raiders of the Lost Ark that includes 21 seconds of never-before-seen footage; however, they delay reaching the theater, resulting in much complaining from Sheldon, which becomes worse when Wil Wheaton arrives. Because Wheaton is ushered into the theater ahead of everyone, Sheldon exclaims with his impersonation of 's accent, "As Captain Jean-Luc Picard once said, the line must be drawn here... THIS far, NO farther!" When the four are eventually denied entrance to the theater, Sheldon steals the film cans containing the footage, resulting in an angry mob (led by Wheaton) chasing Leonard, Sheldon, Howard, and Raj out of the theater.

Meanwhile, Penny and Bernadette have a "girls' night in," in Penny's apartment. Amy, who was originally planning on attending the movie with the guys, decides to join Penny and Bernadette claiming "I'm a girl." She keeps repeating she's a girl and butts her way into their evening. As Amy has never been to a "sleepover" before, she searches to determine sleepover customs, which Penny and Bernadette reluctantly go along with. During a game of "," Bernadette and Amy catch Penny off-guard when they ask her personal questions concerning her breakup with Leonard; eventually, Penny storms into her bedroom. In the final scene, Amy discovers that acts of lesbianism are common at sleepovers, and enters Penny's bedroom. The scene ends with Bernadette sitting on the couch listening to Penny's horrified reaction and reading the rest of Amy's list of sleepover activities, saying she would've gone with eating raw.

Critics
"It makes sense that Amy would be like Sheldon, how else could he tolerate her? However the writers try hard here to write her as a surrogate Sheldon in scenes with Penny. While this largely fails there are moments where it succeeds...Amy is presented as having no social skills or understanding at all. While that can work (as with Truth or Dare?), more often than not the writers just had her say inappropriate things...There is promise in Amy yet but they need to define her. I'm not sure there is promise in Leonard and Penny anymore which is a shame." - The TV Critic's Review

Quotes
Amy: Yes, and continue to bond. I have a feeling that after tonight, one of you will become my best friend forever, or BFF if you prefer - which I don't.

Bernadette: Oh, no. That movie has melting faces. It reminds me too much of the time I dropped that vial of flesh-eating bacteria into the lab. Besides, Penny and I are having a girls’ night tonight.

Sheldon: I believe in knowing my enemy, Leonard. Had Twitter existed at the time, would not have followed the tweets of ? Would not have followed ? Would not Spy have followed Spy? I have more examples, but excuse me. (On phone) Hello. Well, this seems like an odd time to test my cell phone quality, but go on. Test phrases? All right. I'm a toat. Ulbut. Twad. All together? I’m a total butt wad. Why are you laughing? Hello?

Wil Wheaton: He’s got the movie! Get him!

Sheldon: Why is there never a pontoon plane when you need one?

Trivia

 * Because of her broken leg Kaley Cuoco is shown working as The Cheesecake Factory's bartender again, instead her normal job as a waitress. Also, a is used when Penny storms off near the end of the episode.
 * Sheldon recalls how he made Leonard wait in line for Star Trek Nemesis to get good seats, though that film was released in 2002 and Leonard and Sheldon didn't meet until 2003, according to "The Staircase Implementation"（S3E22). Given the tepid response to the film by the public at large it's unlikely there was a revival showing of it, unless it too had unseen footage, that would have made the movie better.
 * The so-called " controversy" from  refers to the scene where grabs hold to the outside of a  submarine and rides it all the way to their hidden island base. The "controversy" is how Indy knew the sub wouldn't submerge and likely cause him to drown. In novelizations and comic adaptations of the film, The submarine does submerge, but Indy lashes himself to the, which remains above water.
 * The addition of 21 seconds to a Raiders of the Lost Ark special edition echoes 's adjustments to the Star Wars films, and also calls to mind the episode "Free Hat," in which the boys of South Park try to stop George Lucas and  from creating a special edition of Raiders of the Lost Ark.
 * Wil Wheaton has referenced Star Wars twice. While Sheldon was waiting in line for the special screening of "Raiders of the Lost Ark" in this episode, he calls Wil Wheaton the Jar Jar Binks of the Star Trek universe, causing Wil Wheaton to impersonate Jar Jar Binks - "Meesa think that very funny." In "The Wheaton Recurrence", Wil Wheaton told Sheldon to embrace the dark side during the bowling match, with Sheldon pointing out "that's not even from your franchise."
 * The night that the episode premiered the "Common Activities" section of the Wikipedia entry for, which Amy refers to for help during the episode, was edited to include the quote "harmless experimentation with lesbianism" as well as to list eating cookie dough and as common sleepover activities. These were, however, quickly removed, likely because while they are indeed activities that some sleepovers include they could not be considered common.
 * Bernadette notes that Howard has one really long chest hair (there are, however, several episodes in which Howard is shown shirtless with thick chest hair).
 * When Raj whistles for Sheldon as he is stealing the film reels from the unattended projection booth, Sheldon responds to the call with no sign of being disgruntled. Previously, in "The Friendship Algorithm", Leonard revealed that Sheldon does not tolerate whistling and actually posted a flyer at Cal Tech: "Roommate Wanted. Whistlers need NOT apply."
 * The final scene with Sheldon being chased from the theater by the audience is based on the scene in "Raiders" where Indiana Jones is chased by the natives and runs for the . Sheldon even mentions that there is never a pontoon plane when you need one as he runs off camera.
 * In line at the movie theater, Leonard is holding a copy of.
 * Captain Sweatpants and Lonely Larry are in Wil Wheaton gang.

Video
thumb|400px|left|The guys run away from the wrath of angered fanboys