The Cinema Society Hosts A Screening Of IFC Films' 'Wakefield' - After PartyJennifer Garner after the dentist is hilarious.

The actress shared a throwback video on Thursday, giving fans a glimpse at a time when she left the dentist all hopped up on medicine. She'd had a procedure involving laughing gas, and as a result, she couldn't talk about "Hamilton" without getting extremely emotional. Fortunately, someone had the foresight to film her as she told someone over the phone about listening to "the sad part" of the musical.

"Throwback Thursday-- that time I had dental anesthesia...laughing gas + novocaine + Hamilton = you're welcome," she wrote.

Whoever was on the other line for that call must have been entertained. Garner normally seems so poised, but give her some dental drugs and put on "Hamilton" songs, and suddenly she's kind of a mess. We can't blame her, though, because it really is so beautiful.