Call it a little piece of everyday heroism.
"The Avengers" star Mark Ruffalo lost his wallet last week, but got it back thanks to a Good Samaritan and social media.
On Sunday, a Twitter user sent a tweet to Ruffalo that said: "I have your wallet. Found it in a cab in Chicago on Friday. Let me know the best way to get it back to you. Thanks."
Needless to say, the 46-year-old actor was happy to get the message.
Ruffalo can currently be seen in the film "Begin Again" with Keira Knightley, Hailee Steinfeld and Adam Levine of Maroon 5 fame. He'll also appear in the "The Avengers" sequel, "Age of Ultron," which comes out next summer.