Straight Outta Compton starts out in 1986, but one of its accessories is from 1991.

In one of the film's early scenes, Eazy-E (played by Jason Mitchell) sports a black Chicago White Sox hat with a white logo. However, some sports history buffs immediately realized something — that logo didn't even exist in 1986.

#161: Straight Outta Compton - MovieCount 2015. Great movie! Except Easy-E's 1991 White Sox hat in 1986. #anachronism pic.twitter.com/jETH1sxAbC — Mike Provine (@mjprovine) August 18, 2015

The white logo was created in 1990 and officially rolled out in 1991. Prior to that, the Sox logo went through a few other incarnations.

The different logos over the years. Image: White Sox official website

Even though it was placed in the wrong year, the film wasn't wrong to show E wearing the cap. That Sox logo was particularly popular with the hip-hop set in the '90s, with Eazy-E, Dr. Dre, Ice Cube and 50 Cent donning it at one time or another.