Deadpool's name comes from a grim betting game he played with fellow prisoners while being tortured by Ajax.
Dopinder, Deadpool's anxious taxi driver, was named after a classmate of Reynolds who died from lightning.
Reynolds' superhero debut was rocky with 2011's Green Lantern, but Deadpool pokes fun at the film’s failure.
Deadpool's swords are named "Bea" and "Arthur," nodding to the character’s comic fascination with a late actress.
Reynolds’ nuanced portrayal of Deadpool broke the superhero mold, earning him a Golden Globe nod and making him the first MCU actor to be nominated.
In Deadpool 2, the character mocks Domino's design for lacking feet, a nod to co-creator Rob Liefeld’s notorious art style. Liefeld enjoyed the joke.
Andre Tricoteux, the actor playing Russian X-Men member Colossus, is already 6’11 in real life but was a staggering 7’6 once he’d donned the Colossus suit.
Deadpool frequently jokes about its low budget, which was cut by $7 million, forcing major script rewrites.
The film nearly used a joint instead of a cigarette in the opening scene to show Deadpool’s self-debasement.
The castle for Xavier’s School also appeared in Smallville and Disney’s Descendants.