Screenwriters Rhett Reese and Paul Wernick tell BI secrets and spoilers from "Deadpool & Wolverine." Chris Evans contributed to writing the profanity-laced Johnny Storm scene in the end credits. Mephisto was going to be the movie's villain in early "Deadpool 3" drafts.

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You can opt-out at any time by visiting our Preferences page or by clicking "unsubscribe" at the bottom of the email. Advertisement "Deadpool & Wolverine" marks the third time screenwriters Rhett Reese and Paul Wernick have teamed with Ryan Reynolds to pen an outlandish and foul-mouthed script for a Deadpool movie. Though every movie in the franchise has had its challenges, Reese and Wernick admit this one had the most twists and turns.

First, they weren't the original screenwriters. Wendy and Lizzie Molyneux ("Bob's Burgers") took a first stab, but when Marvel wanted to go another direction, Reynolds called his mates. This story is available exclusively to Business Insider subscribers.

Become an Insider and start reading now. Have an account? Log in . With Deadpool now a part of the Marvel Cinematic Universe after Disney b.