Jeremy Renner Crashes Wedding With 'Tag' Cast and Completely Ruins the Best Man's Speech

Jeremy Renner was the first to burst onto the scene, stunning the best man. "I was in the middle of a speech," he told Renner, who apologized and explained that he was playing "a stupid game of tag" with his friends, before those friends showed up to even more screaming from the party-goers.

The childhood game is at the center of the upcoming comedy, which is based on an actual group of friends who played a month-long game of tag around the world as adults.

Another angle showed Renner slipping into the banquet room, apparently having no idea what it was being used for. He was quickly recognized by the best man, who pointed at him and shouted, "That's Hawkeye!"

Renner was followed by his co-stars Ed Helms, Jon Hamm and Jake Johnson. "What are you doing?" Hamm asked Renner, as the latter stood by the wedding party table holding the microphone.

The foursome ultimately put their game on pause to schmooze with the stunned wedding guests and even posed for a picture with the bride and groom. While it looks like the real stars of the evening were thrilled to see Hollywood stars making cameos at their wedding, the best man seemed a little frustrated the actors were stealing his spotlight. "Can I finish my speech now?" the best man asked the room several times.

Afterward, the "Tag" cast regrouped outside the banquet room. "Renner, what did we just do?" Hamm asked.

"We played tag at a wedding and we are grown men," Renner responded. He then gave a friendly butt pat and declared the game back on, and we suddenly want to go play tag with our friends. As long as no one gets hurt, why can't adults have that kind of carefree jubilation from time to time?

"Tag" runs into theaters June 15. Oh, and if you're reading this, "Tag, you're it!"