Celebs Who've Worked Together More Than Once

When it comes to making a great movie that's a hit at the box office and garners the praise of critics and fans alike, there is one major piece of the formula that producers and actors must get correct: on-screen chemistry.

If the actors in a film don't have good chemistry (especially if they're supposed to be in a romantic relationship), the whole thing could fall apart. This is why directors and producers will often hold chemistry tests before shooting a movie - to ensure that they aren't missing a major piece of the formula that will (hopefully) lead to box office gold.

And, boy, when Hollywood finds actors who share good on-screen chemistry, they like to cash in on it as much as they can. This is why we often see the same actors work on multiple movies together. Whether it's a comedic duo like Will Ferrell/John C. Reilly and Tina Fey/Amy Poehler, or a pair of Avengers actors like Scarlett Johansson/Chris Evans, who share a few acting credits outside of the Marvel universe, Hollywood likes to profit off of what they know.

See which on-screen scene partners have double-dipped as we explore 30 celebs who've worked together more than once.