As Robert Downey Jr. stirs up trouble while filming "Captain America: Civil War," teasing fans expecting a clash between the armored and patriotic Avengers on Instagram with the hashtag #pickyourside, perhaps the only actor whose resume bleeds more true-blue Marvel than anyone announced that his part in the movie has wrapped.

During an appearance at Dallas Comic Con over the weekend, Stan Lee reported that his cameo in the 2016 release has already been shot. "I just finished my cameo in the new Captain America movie the day before yesterday in Atlanta," Lee said, according to ComicBook.com, adding, "They should stop calling them cameos and start calling them supporting roles."

Directed by Joe and Anthony Russo, "Captain America: Civil War" is scheduled for release on May 6, 2016.

We work weekends ..for your viewing pleasure... #marvel #civilwar #pickyourside A photo posted by Robert Downey, Jr. (@robertdowneyjr) on