Bruce Willisis one of the best-known actors in Hollywood.

He’s also been known for his celebrity friendships with the likes of Sylvester Stallone and others.

However, the story behind the casting may surprise some fans.

Bruce Willis on the red carpet

Willis and Perry met when they both starred in the 2000 comedy film “The Whole Nine Yards.”

Perry added, “Bruce was a partier; I was an addict.

Bruce has an on-off button.

Bruce Willis and Matthew Perry

He doesn’t have the gene he’s not an addict.”

While Willis worried about the fate of the film, Perry was confident that fans would enjoy the movie.

So, the two pals made a bet.

Bruce Willis on Friends

Of course, it was Perry who ended up being triumphant in the situation.

Willis only appeared in three episodes as Paul.

Willis didn’t want to kiss Aniston because he was close friends to her then-husband, actor Brad Pitt.

However, the lack of Willis and Aniston kissing wasn’t because of the absence of attraction.

“I would have loved to kiss her, but Brad was my friend and Jennifer was his wife.

It didn’t seem appropriate to me, but she’s a hottie,” Willis confessed.

Willis' guest appearances on “Friends” are iconic among fans.

Oh, and a certainbedroom mirror scenewhere he sang “Love Machine” as Ross hid under the bed.