"You had me at 'hello'" is a famous quote from this Rom-Com.
What is Jerry MacGuire
This comedic duo's romance sparked on the set of The Green Lantern.
Who are Ryan Reynolds and Blake Lively
It is the hometown of Romeo and Juliet.
What is Verona, Italy.
Adam Sandler is seen here in this Rom-Com from 1998: 
What is The Wedding Singer
This drummer and vocalist made Britain proud with his 1988 hit song Groovy Kind of Love.
Who is Phil Collins?
Truman, Chet, Colin, and Elizabeth are the children of the famous couple seen here (both names required!):

Who are Tom Hanks and Rita Wilson
Your sweetheart proposes to you under this iconic landmark. You are in this state: 
What is Missouri
This 1987 Rom-Com was filmed in Nelson, BC.

What is "Roxanne"?
Power couple seen here. She definitely didn't do it:

Who are Kurt Cobain and Courtney Love
The couple seen here, stars of the critically-acclaimed cinematic masterpiece, Overboard!

Who are Kurt Russell and Goldie Hawn?
(Fun Fact: Valentine's Day 1983 is their anniversary!)
This South American country celebrates "Dia dos Namorados", or "Lovers Day", on June 12. It does not officially recognize St. Valentine's Day on February 14, as it overlaps with Carnival.
The Rom-Com starring Audrey Hepburn as Holly Golightly, seen here: 
What is Breakfast at Tiffany's
The band heard here, performing their 80's hit (possibly hinting at a Bromance between Marty and Doc?):
What is Huey Lewis and the News?
This Dothraki/Huxtable Hollywood power couple just called it quits, after almost 17 years together.
Who are Jason Momoa and Lisa Bonet
This equatorial country is known for growing the majority of roses sold in the USA for Valentine's Day, along with their coffee.
What is Columbia
This 1993 Rom-Com featured Meg Ryan and Tom Hanks as Annie and Sam, brought together by a radio show, a well-written letter, and a few coincidences.
What is Sleepless in Seattle
The couple seen here, singing "I Got you, Babe":

Who are Sonny and Cher
The nickname of this '00s (AND 2021 redux!) celeb couple seen here:

What is "Bennifer"
"White Day" is observed on March 14th: on this day, men are expected to give gifts to the women who favoured them with treats on Valentine's Day. It has it's origins in this Asian nation.
What is Japan