The long hours. Hot love scenes. Always having to be around one another.
With little time to date outside of work, it's no wonder celebrities fall for one another on set. Before you can blink, it's Lights! Camera! Love! As the sparks fly, the paparazzi are taking photos and the media is running any story they can on the will they/won't they make it angle.
The funny part? None of these couples ever imagined they would end up together and live happily ever after, Hollywood style. They never realized that earning the big paycheck is a cinch and dating your co-star also sometimes comes with the job.
So grab your sweetie and read on about how these Hollywood couples are still going strong.
Up first, we start with a notorious ladies man who settled down ...
Warren Beatty and Annette Bening
He was known for being a ladies' man, she was known for her sweet, clean image. The two met during the filming of "Bugsy" in 1991 and Beatty was "looking for someone to make him good."
The feeling ended up being mutual. Bening has said that "he made me feel good ... he wants to do things well. I think we both knew pretty early on in 'Bugsy' what was going on between us."
Together they have four children: Kathlyn Elizabeth, Benjamin, Isabel Ira Ashley, and Ella Corinne.
The kids really are all right.
Warren on Annette: "She has a great capacity to be happy, which is a great gift to me and an even greater gift to her children."
Annette on Warren: "Warren is an individual thinker. He doesn't follow the crowd, and I really like that about him."
Next, Alias meets Bennifer ...
Ben Affleck and Jennifer Garner
The two originally met in the hit film "Pearl Harbor" in 2001 but started dating shortly after the filming of "Daredevil" in 2003. They seemed perfect for each other, with both Affleck and Garner falling for each other's admiration and respect for one another. After nine months of dating, they took a dare on each other by getting engaged.
The superheroes have three children.
Ben sure likes his Jennifers.
Ben on Jennifer: "I don't think she thinks that she is as drop-dead gorgeous as she is and I think that is what gives her this incredibly appealing quality."
Jennifer on Ben: "He's really a gentleman. And he's not afraid to laugh at himself or you."
Up next, a Fresh Prince finds his princess ...
Will Smith and Jada Pinkett
The smooth charmer of "The Fresh Prince of Bel Air" met the sassy Pinkett in 1995 when she tried out for the role of Will's girlfriend. Although she never got the part, she fell for the funny man and got the role as a happily hitched wife two years later.