Some celebrity and entertainment headlines on the Celebritology radar, post-July 4th...

Chelsea Handler at the Hollywood premiere of "Horrible Bosses," before the bosses of her sitcom started firing staff members. (ROBYN BECK/AFP/GETTY IMAGES)

Patricia Arquette and Thomas Jane have finalized their divorce. (Popeater)

Scarlett Johansson , who also just finalized her divorce (from Ryan Reynolds), spent July Fourth weekend in the Hamptons, where she partied with Pete Yorn, Cameron Diaz and others. (New York Post)

Also in the Hamptons over the weekend: Justin Bieber and Selena Gomez , who dropped $700 on apparel at one shop, then realized they didn’t have enough cash on them for ice cream at the Candy Kitchen. A customer paid, saving the Biebs a trip to the ATM. (People)

Nicki Minaj mourns the death of her cousin, who was murdered in Brooklyn over the weekend; the singer shared news of his death via Twitter. (BBC Radio 1’s Newsbeat)

Chord Overstreet will no longer be a regular cast member on “Glee”; his option was not picked up, but it’s possible he could make a guest appearance or two during season three. Darren Criss and Harry Shum Jr. , on the other hand, were upgraded to regulars on the Fox sing-athon. (TVline)

Nicolas Cage’s son has a bad weekend, and more dating rumors swirl around Olivia Wilde, after the jump.

Weston Cage, son of Nicolas Cage, was arrested and charged with domestic violence over the weekend. His wife Nikki Williams was also arrested and charged. She allegedly attacked him with a bottle. The couple reportedly got out of rehab just days ago. (Daily Mail)

Olivia Wilde — who in recent months has been linked via the celebrity blogosphere to Jake Gyllenhaal, Justin Timberlake, Ryans both Reynolds and Gosling and Bradley Cooper — laughs off new rumors that she is dating Chris Pine. Because really, this is just getting silly. (Digital Spy)

Ever wondered what “Harry Potter” characters would look like if they lived in “South Park”? Well, now you know. (