90210

The scenes of Guru Sona's party were filmed at Vasquez Rocks Natural Area Park, a popular filming location that has appeared in many movies and TV shows including Star Trek, Roswell, Friends, and 24. The park is located north of Los Angeles, in Agua Dulce, California.

Although credited, Trevor Donovan (Teddy Montgomery) does not appear in this episode.

According to the paternity test report, Jen's full name is Jennifer Clark-Le Sage, and she is 24 weeks pregnant.

In one scene of the episode Adrianna and Gia are watching the 1970 movie "Love Story" starring Ryan O'Neal and Ali MacGraw (both are spotted on screen). Ryan O'Neal has been cast as Teddy's father and will first appear in the episodes airing in April 2010.

Goof: After Annie asks Jasper if he is a drug dealer and he gets upset and drives off, a cameraman is visible in the background across the street.

Goof: When Kelly visits her mother to tell her to stay away from Silver, the book on Jackie's lap immediately moves from closed to open when the camera angle changes.

Near the end of the episode when Liam deletes the recording of Jen admitting that they slept together, the date on his phone reads January 10th, despite the fact that the episode aired in October.

Goof: At the beginning of the episode, Dixon and Sasha are laying down in bed listening to music on a set of headphones. As the camera angle changes throughout the scene, the pink strap on Sasha's top changes position.

Goof: When Navid is at the desk at the beach club trying to reserve a cabana, he is holding a pen with his arms in front of him. When the camera changes angles, his arms are crossed, and the pen is gone.

At the party, Naomi, Adrianna, Silver and the other party goers perform the "Stanky Leg" dance.

Goof: In the cafeteria scene at the beginning of the episode where Navid and Adriana tell Naomi, Dixon, Annie, and Ethan that they plan to get married and keep the baby, Navid gets up from the table and takes his tray with him. When the camera angle changes back to the table, his tray is still on the table, and a knife is sitting on Adriana's tray where a fork had been sitting moments before.

"Okaeri" is the Japanese word for "welcome back home" which is said when a family member returns home after being away either for a short time (e.g. work) or longer (e.g. vacation).

Goof: When Annie and Silver are eating in the cafeteria and talking about Valentine's Day plans for Silver and Dixon, the position of Silver's fork in her bowl of fruit is inconsistent as the camera angle changes.

Goof: When Adriana and Naomi are sitting by the pool reading through Ty's contract, the straps on Naomi's tank top alternate between sitting up against her body and sticking out as the camera angle changes.

Goof: When Dixon and Annie are in the bathroom before going to bed, Annie tells him that she saw Sean get a local phone call. When Dixon tells her not to worry about it and kisses her on the forehead, Annie's arms are behind her back, but when the camera angle changes, her arms are crossed in front of her.

Adrianna's Contacts: Akiko 323-555-0167 Ally 310-555-0134 Annie 323-555-0123 Danny 323-555-0132 Kelly 310-555-0169 Lilly 818-555-0181 Marty 323-555-0126 Mom 323-555-0163 Navid 323-555-0177 Ralphie 310-555-0156 Since Adrianna's contacts are all in alphabetical order, it seems odd that her best friend Naomi isn't listed among them. It's also strange that Kelly's number is listed under her first name, since Adrianna always refers to her as "Ms. Taylor". Finally, the fact that the mysterious Ralphie's number appears in every phone list we've seen to date (Brenda's, Annie's, and now Adrianna's) is quite odd since it hardly seems likely that teachers and students mingle with the same group. It's also strange that in Annie's contact list Ralphie's number is 310-555-0169 - which according to Adrianna's list is Kelly's number.

Continuity Error: In this episode, Annie tells Ethan that she and Jason started dating in junior high. But this doesn't match up with what her mother said to her in episode 1x05 Wide Awake and Dreaming, when she was having "the talk" with Annie. In that conversation, she made reference to the fact that Annie was a serial dater who fell in love easily, broke up quickly, and moved on rapidly.

For a short period of time following this episode, viewers could call Jason's phone number (913-709-0409) and listen to the voicemail Naomi left for him, inviting Jason to Annie's Sweet Sixteen birthday. Unfortunately, the number no longer works.