Ryan Reynolds says he'll only make 'Deadpool 4' if he's 'capital B broke.' Here's what to know about a potential fourth film.

• "Deadpool & Wolverine" leaves the door open for more adventures with Ryan Reynolds' antihero.
• The actor previously joked that he'd only make "Deadpool 4" if he's "capital B broke."
• It's possible fans will see him appear elsewhere in the Marvel Cinematic Universe before another sequel.

Warning: Spoilers ahead for "Deadpool & Wolverine."

"Deadpool & Wolverine" finally brings Wade Wilson (Ryan Reynolds) and Logan (Hugh Jackman) together in a violent adventure across the multiverse that leaves the door open for future appearances from the actors, like a potential "Deadpool 4."