Star-Lord, Captain America

Chris Pratt, left, as Star-Lord in "Guardians of the Galaxy," and Chris Evans, right, as Captain America in "The Avengers," have made a Super Bowl bet for charity.

(The Associated Press)

Will we get to see "The Avengers" and "Guardians of the Galaxy" in the same movie? Maybe not anytime soon, but for now we can enjoy a showdown between Captain America and Star-Lord.

Chris Evans, who plays the first Avenger, and Chris Pratt, who led a motley crew of superheroes as Peter Quill last year, have made a super bet -- on the Super Bowl, of course. Evans, a Boston native, is rooting for the New England Patriots in Super Bowl XLIX and Pratt, who grew up in Washington, wants the Seattle Seahawks to repeat.

Well, well, well @prattprattpratt, looks like our teams are going into battle. For the next 2 weeks, you are not my friend, you are my enemy — Chris Evans (@ChrisEvans) January 19, 2015

@ChrisEvans We both know there's only one Captain America and his name is Russell Wilson. #SuperBowlBound #LOB #Repeat — chris pratt (@prattprattpratt) January 19, 2015

The Twitter trash-talking quickly escalated into an actual wager on Wednesday.

@ChrisEvans OK. Seahawks win you fly yourself to Seattle, visit @seattlechildren hospital as Captain America, waving the 12th man flag. — chris pratt (@prattprattpratt) January 21, 2015

@prattprattpratt I accept. And when the Patriots humiliate your seachickens, I expect Star-Lord to arrive at @chris_haven in a Brady jersey — Chris Evans (@ChrisEvans) January 21, 2015

@ChrisEvans Humiliate my Seahawks? Maybe talk to Brady about deflating your expectations. BOOM! (legion of) You're on sucka. 😊 — chris pratt (@prattprattpratt) January 21, 2015

So there you have it. If the Pats win on Feb. 1, Pratt will appear in costume (with a Tom Brady jersey) at Christopher's Haven, a nonprofit that helps families with children fighting pediatric cancer in Boston. If the 'Hawks win the NFL championship for the second year in a row, Evans will dress up as Captain America and wave the Seahawks' 12th man flag at the Seattle Children's Hospital.

Who will win, the Patriots or the Seahawks? Or better yet, who would win in a battle: Captain America or Star-Lord?